The 146 hasn't got real Engines!!
Yes the RB211 ran for 2 mins at idle on the ground after pulling the handle.....
The Movie obviously went to great lengths to use a Simulator ( of some description ) and a good cabin simulator as well. They could have easily made the rest a bit more realistic and believable but then again it is HOLLYWOOD and they are only interested in making money....
Yes the FO was a real woosy.....