Other mistake: When Walker and Michelle fall down the steps at Dede's apartment, Walker lights a match to show Michelle the matchbook. The light from the match flickers on their faces but if you watch closely you can see the match go out as soon as Walker strikes it. (00:54:45)
Other mistake: As Harrison Ford goes to grab the chimney as he is falling off the rooftop, notice the way the chimney bounces around, like rubber.
Suggested correction: No, it doesn't. It doesn't move at all.
Sacha ★
When he grabs the chimney, a piece of it breaks off, and it indeed bounces around right before he falls.
zenee
First of all, the broken piece falls off camera. The chimney moves because he falls on the roof. It shakes, but does not wobble like rubber.
Sacha ★