Continuity mistake: In Season 2 Episode 22, Model Behavior, Woody has gotten his braces off. However, in this episode, he has braces back on again.
Other mistake: The battle droids - including the commando droids featured here - habitually have two broad fingers and a thumb. So how can a commando droid squeeze itself completely into clone trooper armor without its broad fingers tearing open the gloves, since it can't separate its fingers?
Triumvirate of Terror! - S3-E8
Continuity mistake: Right at the beginning, the camera closes in on a baseball field. It shows several people standing and walking out in the field and just two standing up by home plate. The view changes to behind home plate and suddenly there are several superheroes sitting and stretching there, and the rest of the field is empty. Then after a shot of Jimmy Olson in the commentator stand, it shows a high view of the field again and the people have all changed again. (00:00:10)
Iron Forged in Fire: Part One - S1-E1
Continuity mistake: As Tony is walking over a wooded floor, there is a plant behind a yellow couch in the lounge, and the plant appears to be an orangish brown color. A few shots later as Tony is walking, you see the same plant behind him which is now green. (00:02:05)
Continuity mistake: At the beginning of the episode, Storm and Professor X can be seen on the asphalt between the grass and the mansion, behind and to the viewer's left of two boys. When the shot changes, they are suddenly on the grass and in front of the two boys. (00:00:50)