Complex sentence: The film's studio Endgame Entertainment negotiated a deal with FilmDistrict at the Cannes Film Festival in May 2011, for FilmDistrict to release the film in the United States through TriStar Pictures.
Split into simpler sentences: The film's production company, Endgame Entertainment, negotiated a deal with FilmDistrict at the Cannes Film Festival in May 2011. In turn, FilmDistrict chose to release the film in the United States with TriStar Pictures.