Continuity mistake: After Anakin has told Windu that Palpatine is the Sith Lord, Windu gets on his ship which takes off. We see the ship's shadow moving on the ground right next to Anakin. When it cuts the shadow from the ship is gone. When it cuts again to a wider shot we see the ship's shadow suddenly appear again. (01:06:05)
Continuity mistake: When Anakin has just had the bad dream, Padme comes out wearing the nightdress with rows of beads around her arms. In one shot, the beads on her right arm are twisted, in the next, they're straight again. (00:30:20)
Continuity mistake: When Mace Windu and Palpatine are in his office after the lightsaber battle, Palpatine scrabbles into the corner as Windu paces towards him, ending up directly over him with lightsaber pointed at his throat. As Anakin walks in, Palpatine is already backed into the corner and Windu needs a few paces to get to him. (01:09:55)
Continuity mistake: In the scene where Plo Koon gets blasted by his Clone Troopers, the exterior shots show he is in an Episode II starfighter (closed/pointed bow, no small rear window on cockpit canopy- best seen as the Emperor gives the order), yet the interior shots of his cockpit show he is inside an Episode III starfighter (forked bow, small rear window on canopy- same as Obi-Wan's starfighter). (01:22:10)
Continuity mistake: When Anakin and Obi-Wan come to rescue Palpatine we see in the wideshot a battle ship in the window behind Palpatine. When it cuts to a closeup of Palpatine the ship is gone. (00:11:05)
Audio problem: After the buzz droids land on Obi-Wan's starfighter, Obi-Wan says, "I'm hit. Anakin?" As he says, "Anakin?" his head is turned to the side, but you can see that the last word doesn't quite fit his lips or the motion of his jaw. (00:05:10)
Continuity mistake: When the Emperor and Yoda flip backwards out of the pod from the "kickback" of the Force lightning the Emperor falls onto the sloped side of the pod.When they show him again he is hanging on the side of the pod with handles.(If you look at the pods each has a sloped side and a part with guardrail or handle)
Continuity mistake: When Obi-Wan and Anakin are fighting Grievous' droids we see two droids dragging Palpatine through an opening door. A couple of shots later we still see the droids dragging Palpatine through the door which is still opening in the same position as earlier. (00:18:55)
Revealing mistake: When Anakin and Obi-Wan use the force to throw each other through the air, as Anakin lands on the panel, the stunt double is quite obvious. (01:47:35)
Continuity mistake: When Obi-Wan kicks Anakin for the second time as they fight on the huge table, as the shot ends, Anakin is about to land on the right side of the table. In the next shot, he lands on the other side, and in the following shot, we see the impact of him landing again. Also, his position as he lies on the table keeps changing between shots. This is easy to see in the wide shots, and in the close-ups, where it can be seen from the pattern and the lit strip on the table. Also, notice that as his lightsaber flies into his hand, his hand is on the edge of the table, but in the previous and following shots, he was lying too far away from the edge to reach it. (01:46:45)
Continuity mistake: When Mace Windu departs to confront Palpatine, as the ship takes off, Anakin's position on the floor differs from the previous shot, seen from the lines on the floor. (01:06:00)
Continuity mistake: When Anakin, Obi-Wan and Palpatine are hanging in the elevator shaft as Obi-Wan says "Too late, jump." we see him still holding around Anakin's shoulders. As it cuts he is suddenly by Anakin's waist level. (00:16:35)
Audio problem: After Anakin is appointed to the Jedi Council, Ki-Adi-Mundi says, "What about the droid attack on the Wookies?", but the first two words don't match the movement of his lips. (Even though he's an alien, his lips always move like the lips of a human.). (00:36:20)
Revealing mistake: When Anakin and Obi-Wan are fighting on top of the table, after Anakin kicks Obi-Wan, we see a wide shot of Obi-Wan hitting the table, followed by a close-up of Anakin charging at him. You can see that the one who comes toward him is not Hayden Christensen, but his stunt double. (01:51:15)
Audio problem: After Anakin kills Count Dooku, Palpatine says, "Remember what you told me about your mother and the Sand People." In the next shot, his head is shown from behind, but if you watch closely, you can see that his jaw is moving as if he were talking, but nothing is heard. Use zoom for confirmation. (00:14:20)
Continuity mistake: Just before the lightsaber battle between Mace Windu and Darth Sidious, we see the lightsaber of Sidious ejected from his sleeve and he grabs it with his finger down the length of it. We then instantly cut to a wide shot and he's suddenly gripping it with all his fingers curled in. (01:08:30)
Continuity mistake: At the performance when Palpatine and Anakin are talking, Palpatine says "he could even keep the ones he cared about from dying" while turning his head to Anakin, then his head stops. When it cuts back his head is still turning. (00:44:55)
Continuity mistake: Before the lightsaber battle between Grievous and Kenobi, the area where they are standing and where Kenobi "drops" the weight on the magnadroids is a solid floor. The whole preparation-for-battle-scene does not include much movement from the actors. As soon as Grievous begins to move in on Kenobi, both of them are suddenly standing on some sort of bridge, without even passing the dropped weight. (00:56:15)
Continuity mistake: When Obi-Wan and Yoda walk through the Jedi Temple after order 66, in the second shot, they are standing on a round circle on the floor, but in the previous shot, they were a few metres away from it. (01:30:40)
Continuity mistake: When R2 is at the terminal near the beginning, the two super battle droids start to walk over to him and their red dots are on the left hand side but when they get to R2 they have moved to the right hand side.
Answer: Darth Vader has a special chamber in which parts of the suit can be removed for comfort. When he is not in the chamber he must wear it at all times in order to survive.