One time bff to Brad Pitt and Jennifer Aniston, Catherine Keener prepares to cement her place in the Vaughniston relationship as well.

From The Hollywood Reporter

Catherine Keener and Vince Vaughn are taking a walk on the "Wild" side. The two have boarded the Sean Penn-helmed "Into the Wild," which Paramount Pictures' new specialty division is distributing.

Emile Hirsch already has signed on to star in the film, which chronicles the true story of Christopher McCandless, who graduated from college in 1992, abandoned his possessions and hitchhiked to Alaska to live in the wilderness and return to nature. He died four months later in an abandoned bus at a remote campsite. Penn adapted the screenplay from Jon Krakauer's book of the same name.

Keener's character picks up the hitchhiker and takes him in as a surrogate son. Vaughn plays a tow-truck driver whom Hirsch's character meets on the road.