Continuity mistake: During the podrace, Anakin is in front of Sebulba and has him on his tail. One view looking towards Anakin you can see Sebulba's pod in the background, but the driver's seat is empty.
Revealing mistake: When Qui-Gon, Jar-Jar, and Padme are eating at Anakin's house, Anakin's mum pours water for Qui-Gon. But when she gets to Jar-Jar, she tips the pitcher but no water comes out.
Continuity mistake: Obi-Wan's braided hair keeps changing sides, and getting longer and shorter, most noticeably in the scenes around the underwater city.
Continuity mistake: When the flags are first brought out onto the course, we see C3P0 carrying Anakin's flag (a blue cross) three back from the front. Then in a closeup of him, he's suddenly between two different flag carriers. Worse still, in a wide shot of the flag carriers leaving the course before the race, he and the flag have disappeared completely.
Continuity mistake: When Anakin attaches 3PO's right eye, one shot has the eye in his left hand, then the angle changes and the eye is being applied with the right hand.
Continuity mistake: When Palpatine and Queen Amidala are conversing in his office (when Palpatine refers to Valorum having 'very little real power') his outfit switches from a green breasted cloak with a blue collar area to a green breasted cloak and dark green collar. It switches back after one shot.
Continuity mistake: When Amidala and some other guards use the ascension guns from the palace windows seven of them go up, when they are running along the corridor after coming off the window-ledge, there are about 13 or 14 of them. Then finally when they are surrounded by the droids, there are about 10 or 11 of them and Captain Panaka is not there.
Visible crew/equipment: In the initial scene, when the Federation invade Naboo, you can see two takes of Queen Amidala watching the window on her palace. At the left of the screen you can see a black wire - maybe a light connection?
Audio problem: Before the Trade Federation Droid Control Ship starts exploding from the inside, a Neimoidian says, "Nothing can get through our shield". But his mouth doesn't move until after he's said it.
Continuity mistake: Darth Maul's neck is black, but when he is talking to Darth Sidious on Coruscant, his neck is flesh-toned.
Continuity mistake: In the chamber room near the end of the movie, after the Queen throws the guns to everyone and goes to address the Viceroy, she starts to walk away from her chair. While she is doing that, you can distinctly see her lose her footing and slip on the floor. In the next edit she repeats this movement without slipping.
Revealing mistake: After everyone leaves Tatooine after the short stay they land on Coruscant in the middle of busy air traffic. Unfortunately, the ship that they fly in (the Nubian), with its incredibly shiny and mirror-like appearance does not reflect the bustling traffic above, nor the people walking out of it. It only seems to reflect the basic landscape.
Continuity mistake: When Qui-Gon and Obi-Wan are landing the Naboo ship on Tatooine to repair it, watch the landing closely. The shadow of the ship is already on the ground before the ship lands on it. Also the ship tilts back and forth during the landing but the shadow never changes or moves. Also, if you look carefully at the dust (which was shot using a helicopter landing) some of the dust being flicked up actually passes through the ship.
Revealing mistake: When Qui-Gon is talking to Jar Jar for the first time, they are walking through the forest. A branch with leaves comes up and Jar Jar dips his head to avoid it, but his eye and part of his head go through the leaves.
Audio problem: After Anakin has won the Podrace, he yells, "Mum, I did it! Yeah!", but the words don't match his actual lip movement.
Revealing mistake: When the Queen blasts the window to gain entrance into the upper floor of the palace, a shot from down the corridor reveals that the window was already open before the sparks and smoke appeared on screen.
Deliberate mistake: When Jar Jar gets arrested in the Gungan city, in the second shot of Jar Jar and Obi-Wan, Obi-Wan and a part of the floor behind him are reversed. This can be seen, for example, because two of the red areas on the floor have switched positions, and Obi-Wan's braid and lightsabre are on the wrong side.
Revealing mistake: When Qui-Gon is attacked by Darth Maul for the first time, he escapes by leaping onto his ship which quickly takes off. As they zoom up into space, he discusses the mystery attacker with Obi-Wan. However, the lighting from outside the windows never changes giving the impression that they are static on a set rather than whizzing up into space.
Continuity mistake: When Obi-Wan and Qui-Gon are talking to Jar Jar in the forest, Obi-Wan's hair is wet. But when Jar Jar says, "This way, hurry." Obi-Wan's hair is completely dry. In the next shot, it's wet again.
Continuity mistake: In the scene in the podracer hangar after the Podrace, the existence and position of the people and objects keeps changing between shots.
Continuity mistake: After Qui-Gon is struck by Darth Maul's lightsabre, he drops down, and his lightsabre is lying on the floor. In the shot where Maul turns around to face Obi-Wan, the sabre is not lying in the same place as before (seen from the colours of the floor), and the activation button faces upwards, which it didn't do in the previous shot. In the next shot of Qui-Gon, his lightsabre is now closer to him than in the previous shot.
Continuity mistake: Right before Darth Maul kicks Obi-Wan off the walkway, there's a wideshot where Obi-Wan and Qui-Gon are fighting Maul on a straight part of the walkway. In the following shots, all three of them are suddenly standing on a round part of the walkway.
Continuity mistake: When Darth Maul is killed and begins to fall, he is holding his lightsabre, but when we see him falling down the pit, no lightsabre is falling through the air.
Continuity mistake: After Darth Maul falls off the walkway, Qui-Gon jumps down after him, and as they continue the fight, there are several vertical beams behind them. The number of beams and their size change between shots.
Continuity mistake: Sebulba breaks the stabilizer on Anakin's Pod before the Podrace begins, but in the following shots where he's talking to Anakin, you can see in background that the stabilizer is unbroken.
Audio problem: When Obi-Wan rushes through the Force Doors, after Qui-Gon's death, to face Maul, watch and listen carefully. Obi swings his lightsabre three times in rapid seccession, Maul blocks all three attacks. The lightsabres appear to contact, there is even the almost subliminal flash from the beams hitting each other, but the sound crew only inserted two contact sound effects, and those two sounds are slightly out of synch with the actual movements.
Continuity mistake: Near the beginning of the film, there's a few shots of the droid army landing on Naboo, with one shot of one of those hover tanks moving out of the landing ship towards the camera. In front of it are three droids in a line who are also walking towards the camera. Unfortunately, the tank is moving much faster and is bearing down on the droids with no sign of stopping - unfortunately the shot changes just before it runs them over.
Continuity mistake: During the fight against the Trade Federation Droid Control Ship, Anakin says, "Okay, let's go left" and turns the controls of his spacecraft to the left. The ship turns left. A few shots later, Anakin says, "I'll try spinning, that's a good trick" and turns the controls to the left, but this time, the ship turns right.
Other mistake: When Darth Maul and Qui-Gon are fighting in the corridor filled with rays, when Maul spins around in the beginning of the second shot, half of his lightsabre disappears for a few frames.
Continuity mistake: When Obi Wan is fighting with Darth Maul, Maul knocks Obi Wan back into the reactor pit using the force. When they first show Maul's hand, it is his right hand that takes off the lighsaber and pushes Obi Wan back. When the camera angle changes to show Obi Wan rolling backwards into the pit, Maul's left hand is clearly shown raised.
Continuity mistake: When Anakin and Obi-Wan walk up to greet Palpatine on Naboo, in the wideshot, a Republic guard is passing by them. In the close-up, the guard is gone.
Other mistake: When Darth Maul is fighting with Qui-Gon for the first time on Tatooine, Darth Maul's first saber strike actually hits Qui-Gon's hands and saber hilt, not the blade.
Continuity mistake: When Qui-Gon is fighting Darth Maul on Tatooine, Obi-Wan sits down in the cockpit of Amidala's starship. As the shot ends, his hand is up by the top of Ric Olié's (the pilot) seat. In the beginning of the next shot, his hand is down by his side, and Anakin's hand has suddenly appeared on top of the seat.
Continuity mistake: When Qui-Gon delivers the hyperdrive, the amount and arrangement of the load carried by the two eopies keep changing between shots.
Deliberate mistake: When Obi-Wan is fighting Darth Maul alone, after Obi-Wan cuts Maul's lightsabre in half, they start fighting on a different side of the pit. But after Maul kicks him, a close-up of Obi-Wan shows the wall and smoke of the area that they left. The shot has been reversed as well. The easiest way to see this is to watch his braid, which is on the wrong side.
Continuity mistake: When Captain Tarpals gives Jar Jar a zap with his power pole, the fish and the appearance, size and position of some of the bubble building outside the membrane change between shots.
Continuity mistake: After Darth Maul sits down in his speeder, the probe droid flies past him, but in the previous shot, it was nowhere to be seen. It should have been visible, because of its position and the direction it was coming from.
Audio problem: When Obi-Wan checks Anakin's midi-chlorian count, he says that he has a count of over "twenty thousand", but the movement of his lips indicates that he's saying "ten thousand".
Continuity mistake: As Obi-Wan is looking up at Darth Maul and Qui-Gon, they are fighting in the middle of the walkway. When Obi-Wan jumps up, they are at the doorway at the end of the walkway. They couldn't have reached the end of the walkway that quickly.
Revealing mistake: When the Queen is escorted down the stairs in the Theed Royal Palace, right before Nute Gunray says, "Process them.", watch the space between Sabé (the Queen's decoy) and Captain Panaka, before a handmaiden and one of the Queen's guards block the view; the battle droid behind Sabé doesn't cast a shadow on the railing, as everyone else does in this shot.
Continuity mistake: Before the battle on Naboo begins, the Gungans turn on their shields. In a following shot, their shields are off.
Audio problem: When Daultay Dofine says his first line of dialogue which is, "I knew it. They're here to force a settlement.", he speaks with the voice of Rune Haako, the Neimoidian who says, "Have you ever encountered a Jedi knight before, sir?"" shortly after.