Corrected entry: When Stan and Ollie are about to do the "At the Ball, That's All" dance outside Mickey Finn's at the start, they are facing the camera with Mickey Finn's behind them and they start doing the dance whilst the camera is rolling. When the audience are watching them do the dance in the movie at the cinema, they are now facing Mickey Finn's with a projection screen behind them, just like in the actual movie.
Heather Benton
14th Jan 2019
Correction: I'm correcting my own mistake after looking at videos again of the scene in question - I was wrong in my recollection. Stan and Ollie are actually in front of the projection screen when the camera starts rolling and not Mickey Finn's.
Heather Benton ★