JesseRoxII

Continuity mistake: When Kevin is talking to Fred at the beginning of the movie, his cap changes angle throughout the whole scene. (00:12:10 - 00:13:45)

JesseRoxII

Continuity mistake: In 1955, when George walks into his house, Marty thinks of Mystery Science Theatre and looks at the vanishing photograph, and at the dance, after George punches Biff and rescues Lorraine, again Marty looks at the vanishing photo. In these two close-ups the thumb holding the photo looks nothing like Marty's thumb/nail in other close-ups, such as when he powers up the amp at Doc Brown's at the start. (00:03:15 - 01:23:45)

Super Grover ★

Revealing mistake: When Marty is being chased by the terrorists, when he makes the 2nd turn, if you look closely at Marty it is obvious that it is not Michael J. Fox behind the DeLorean windshield, rather it's a stunt driver resembling the original Marty, Eric Stoltz, who was replaced early in filming. (00:30:45)

Continuity mistake: When Garzooka goes to Garfield's house, he pounds on the door and it appears as big as him. But after he breaks the door open, the doorway is thinner. (00:17:05)

JesseRoxII