4/8
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11. Peter Gallagher ended up landing the role of Peter and had a trick for acting like he was in a coma: he would actually fall asleep.
"If I was going to be in a coma, I was gonna be out; if that was the only thing I had to do, I was gonna try and do it," he told Vulture. "I was concerned about staying out too late the night before, because maybe I'd be so tired I wouldn't be able to fall asleep at work. You figure, hey, I didn't come all this way to pretend."
12. While You Were Sleeping was not never intended to be a Christmas movie. "We didn't set it at Christmas while writing–it evolved into that," Lebow revealed to Buzzfeed UK. "The studios wanted it set during the holidays as it would be easier to sell."
13. The scene where the paperboy falls off of his bike? It wasn't in the original script and resulted in a broken wrist for the young actor.