"Twilight" hadn't come out yet at the time of casting, so the producers had no idea of the attention the movie was about to get when they cast Pattinson in the lead role of Tyler. "I didn't know who he was," Allen Coulter [Director] admitted. "That was an advantage because I cast him just because I liked him."
The screenplay for this film was featured in the 2008 Blacklist, a list of the "most liked" unmade scripts of the year.
Aside from being the male lead, Robert Pattinson has an executive producer credit for this movie. He admits he came to being a producer for it towards the end of the movie and did it to protect the process.
Emilie de Ravin was cast on the day of her audition. Her chemistry with Robert Pattinson is what sold the producers. Pattinson has said that they hit it off right away
During breaks while doing a street scene, Robert Pattinson was injured as he ran away from a zealous fan and the paparazzi; not looking where he was going, he ran into a parked cab. His injuries were not major nor life-threatening, but bodyguards still came to his rescue.