Justin Timberlake Injury Delays Filming On Sci-Fi Thriller 'Now'

The movie will be on hiatus until singer/actor's muscle injury heals.

Last week, Justin Timberlake was spotted on crutches after sustaining an injury on the set of his sci-fi thriller "Now." And now, more details are emerging about what happened to the singer/actor when he attempted to do his own stunts on the set of the Amanda Seyfried and Olivia Wilde co-starring flick.

Sources say they "heard a pop" in Timberlake's leg, and E! News confirmed that Timberlake's injury has temporarily shut down production on the film. A rep for the studio said in a statement, "Justin Timberlake sustained a muscle injury to his calf on the set of Andrew Niccol's thriller 'Now.' Production has taken a brief hiatus and will resume shortly."

A set source told the website that the shutdown should last about two weeks. "He hasn't heard anything about the MRI results," the source added. "But they're freezing production until he's off crutches and able to act again." Timberlake was spotted at the Arclight theater in Hollywood for a "Social Network" Q&A session last Thursday, and he seemed to be having trouble walking. The session took place shortly after he was injured.

Timberlake has been making waves as an actor as of late thanks to his roles in "The Social Network" and "Friends With Benefits," which also features Mila Kunis and Emma Stone.

"I gotta tell you, breaking up with Justin Timberlake is really fun," Stone recently told MTV News. "It's a feel-good time. He's such a nice, funny guy. It was really fun. We had a good time."

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