Justin Theroux Starred in Oscar-Nominated Film 'War Horse'...On 'Jimmy Kimmel Live'

In a bit of an awkward moment on Jimmy Kimmel Live last night, Justin Theroux had to inform the host of his very important role in the Oscar-nominated film War Horse. Apparently, Jimmy Kimmel hasn't seen the film but Justin set him straight.

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It was Justin's first time appearing on a late night show and the actor was promoting his new film, Wanderlust, which also stars his girlfriend Jennifer Aniston.

But Justin and Jimmy eventually started discussing this Sunday's Oscars. Justin revealed he will be attending the show as one of his films has been nominated.

You may not have known it, but Justin starred in War Horse.

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"You were in War Horse," Jimmy asked again to make sure.

"Yes," Justin said. "It was kind of a big part too."