Other mistake: In the fight at the beginning of the movie, Kim bends over and launches her jet-pack towards the villains. Almost everyone falls down way before the jet comes anywhere near and/or receive no impact, but they are KO as if they took a rocket to the gut. (00:01:40)
Continuity mistake: Ron falls on the guys that are trying to push Kim off the bridge; in the first close-up of his crazy impact he loses his helmet, but in the wider angle the stuntman seen from behind is still wearing it. (00:01:55)
Revealing mistake: Ron leans against a barrel and sets in motion a series of events leading to an explosion. For being able to tip it with such a modest push, it is obvious it was empty (confirmed also by how it bounces). (00:02:20)
Continuity mistake: At the beginning of the movie, the content spilled by the barrel of chemicals tipped by Ron catches fire; the position of that drum as Ron runs off is entirely different from what happens when the ignition is shown. (00:02:25)
Continuity mistake: Kim taps the Kimmunicator in a close-up; the hair is draped over both shoulders, in front of the right one her red hair flows all the way down her chest. When she is shown talking with Wade, her hair is out of the way. (00:02:40)
Continuity mistake: Dementor is dissolving the Earth globe with the black slime; during the scene the shadows on the table keep changing. In particular there's a large round shadow floating over the goo roughly matching his head movement when he asks why it turned pink and sparkly, totally gone in close-up. (00:03:10)
Continuity mistake: On the ramp fighting Dementor's goons while Ron is working on freeing up the doc, Kim disposes of the first two with an armdrag. The way they land is incoherent with what is shown during the sequence when she drags a third towards her with the hook, as the downed opponents keep changing position and even the direction they face. (00:04:45)
Continuity mistake: Kim's mom is setting the breakfast table. She dodges the drone once as she has two bowls in hand, and when the drone charges at her again she is already pouring cereals from the box in one. Moreover, the drone in the POV hits the box when she is holding chest - high, but in the following shot Alyson Hannigan is holding the box higher. (00:08:55)
Continuity mistake: After surviving the breakfast drone, Kim's mom goes in her room to talk to her before school. Kim puts the pompoms in her bag, but the bag is turned opposite ways between shots. (00:09:40)
Other mistake: When the two women with the baby walk to the stroller, the one with a vest who does not believe in acting has her arm down her side in the first shot, folded with the hand on her belly in the second. It's also worth noting that the stroller is supposedly being pulled closer by the grappling hook, but the rope is not in tension. (00:12:00)
Continuity mistake: When Kim runs to catch the bus after saving the baby, the foliage shadows in the street in her side view don't match the illumination of the street in the long shot. (00:12:00)
Continuity mistake: When Kim parries a soccer ball thrown from who-knows-where, an extra is walking behind her, and is nowhere to be seen in the next shot. (00:16:55)
Continuity mistake: When Kim and Ron arrive late at their very short first lesson, Mr. Barkin is holding the portrait of Lady Whiskerboots with his right hand at a different height between shots. (00:18:30)
Continuity mistake: When the bell rings at the end of their first meeting with Barkin at homeroom, Ron and Kim get shoved aside by the same students twice. (00:19:10)
Continuity mistake: Drakken is in the lair with Shego. As he says "we used to have our own entire island and now we're squatting in a pile of garbage", Shego has her arm first lowered along her side, then raised all of a sudden, and back to lowered. (00:21:25)
Continuity mistake: Establishing shot of the soccer field, all the team is in front of Kim. The last row of players has the rightmost one well on the outside of the second row, but in the view with camera in front of Bonnie, the squad is compacted to be in frame, the player in question now being behind the very tall rightmost player in the second row. (00:23:25)
Continuity mistake: When Kim receives the kickoff ball from Bonnie, her ponytail is in front of her shoulder, as opposed to being behind her back in the following shots. Same switch happens when Ron squeaks "Let's go KP!", you can see the different position during the split screen. (00:23:30)
Character mistake: It's merely training, but her opponents are hostile and want to exclude her from playing, so it's funny then that they don't call Kim out for her actions being egregious fouls; she brings the ball trapping it between her feet in multiple cartwheels (you can't just hold the ball between your feet for prolonged amount of times and 'carry' it). You could also say she kicks the ball at an opponent's face on purpose, which is equally unsporting. (00:24:00)
Continuity mistake: When Kim starts doing cartwheels with the ball between her feet, all the girls that were relatively close suddenly become much more distant (otherwise, since it's such a dumb and unpractical move, they would have caught up on her pretty immediately). (00:24:10)
Continuity mistake: Kim scores in tryout; the ball bounces from the back of the net almost to the goal line, but it's in the corner of the net when Bonnie stands. (00:24:35)
