The Hollywood Reporter says that actor Cillian Murphy, most recently seen in Christopher Nolan's Inception, will be joining Amanda Seyfried among the cast of Andrew Niccol's science fiction drama I'm.mortal for 20th Century Fox and New Regency.
Murphy joins Amanda Seyfried in the movie set in the near future where immortality can be bought and the rich can live forever, creating a situation where overpopulation is controlled by those who can afford to buy more time. When a poor man named Will finds himself with money and is accused of a murder, he goes on the run with a captive heiress, played by Seyfried.
According to the trade, Murphy will play an officer from an organization known as Timekeepers who is as "precise as the time he keeps," presumably making him one of the law enforcement officers after Will.
Last month, ComingSoon.net discovered a tidbit buried in an "American Idol" story saying that Justin Timberlake was in negotiations to play the role of Will in Niccol's movie--you can read that story here--something that's also confirmed by the new Hollywood Reporter story.