Justin Theroux Joining Will Ferrell Football Comedy?

Justin Theroux leaves a studio with a script on Wednesday (March 13) in Los Angeles.

The 40-year-old actor wore a necklace with a gun charm on it as he carried a script for the upcoming comedy Three Mississippi.

PHOTOS: Check out the latest pics of Justin Theroux

Three Mississippi also stars Mark Wahlberg and Will Ferrell and tells the story of two neighboring families and their super competitive annual Thanksgiving game of tackle football.

Three Mississippi is set to be released in the fall of 2013.

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