Revealing mistake: When Grace is watching Bruce's report at the Niagara Falls, it is obvious that the picture has been dubbed onto the TV because there is no reflection of light. (00:16:10)
Revealing mistake: In the scene with the accident, the car already has bumper damage just before it hits the pole. (00:21:00)
Revealing mistake: In the scene where Bruce changes his clothes with the ones on the store mannequin, he touches himself with one finger and smoke comes out. If you look in the windows to his left, there is no reflection of the smoke. (00:36:50)
Revealing mistake: When Bruce is at the restaurant and Jennifer Aniston believes that he is about to propose, watch her left ring finger, you can see the tan lines from her real wedding ring. (00:54:25)
Revealing mistake: When Bruce is calling the pager number, if you look closely, the phone is a fake or not working, because when he is dialing, the phone is suppose to be backlit and is not. Plus, there is a sticker on the phone LCD which is supposed to look like he dialed the number. The numbers are on there before he is finished dialing and the sound doesn't match his finger movements.
Answer: They most likely called him and invited him back in to get the scoop. Before another network gets him.
lionhead