Thread:Shabook/@comment-4411406-20160529204916/@comment-112155-20160529220653

I took a quick look, and though I didn't stop to check if everything is accurate, I think it's entirely possible. Frames are reversed in movies many times, and despite people pays attention to details, it's imposible to get it done always right.

Also, if any, it's a small goof that doesn't change the film at all.