After the president gives the order to nuke the aliens, Jeff Goldblum is in the room with the spaceship drinking. He first opens the refrigerator, which has food on the door. He then opens the fridge door again to put the bottle back, and magically there is nothing on the door. The food has dissapeared!!
Actually, He opens the fridge and there are drinks and bottles on the door. It's his ex-wife who opens it up. When she does, the door has nothing on it.