“Hitmen” (* out four) was a thuddingly awful action thriller that fires all blanks about a billionaire CEO (Eric Roberts) who seeks vengeance over the murder of his grandson and attracts a group of competing international hitmen (Charles Rawes, Vas Blackwood, and others) all bloodthirsty and vying for the job. Joyless movie made my filmmakers who spent too much time watching Michael Mann, Quentin Tarantino, and The Coen Bros growing up. Roberts walks through yet another easy-paycheck role.