By Tanner Stransky
Updated August 09, 2010 at 03:30 PM EDT
Credit: David Gabber/Photorazzi/PR Photos

Image Credit: David Gabber/Photorazzi/PR PhotosInception star Cillian Murphy seems to know where his acting sweet spot lies — in science fiction movies. The actor, who played Robert Fischer, the son of Saito’s terminal corporate rival, in Christopher Nolan’s sci-fi actioner, is about to sign on to another futuristic, possibly mind-bending movie, I’m.mortal, opposite Amanda Seyfried and Justin Timberlake, according to the Hollywood Reporter.

Just like Inception, this one sounds like a creepy-weird doozy: The story is set in a near-future where scientists have finally figured out how to stop aging. But alas! Now the planet is dealing with overpopulation. To combat that, money isn’t currency anymore — time is, and people use it to pay for creature comforts and shorten their life. The rich prosper, while everyone else battles it out for personal immortality. Murphy will play an officer for the Timekeepers organization, while Timberlake (who’s still negotiating) is a poor man who suddenly becomes rich and snatches an heiress (Seyfried) while on the run from a murder investigation.

The officer character — described as “precise as the time he keeps” — sounds like yet another small but pivotal role for Murphy. It could be another smart move for the actor, who’s sort of a master at non-leading, but essential roles, as we also saw with his villain parts in Batman Begins and Red Eye. Does this role sound perfect for Murphy, especially considering his involvement with Inception? Will you go see I’m.mortal for Murphy — and/or the Timberlake/Seyfried combo?