Ed Helms of “The Office” fame and Bradley Cooper are headed for a “Hangover.” They are in final negotiations to star in director Todd Phillips bachelor-party comedy, about three friends who lose the groom at their Vegas fandango two days before the wedding. The third lead role has yet to be cast for the Warner Bros. film.

Todd Phillips, who last directed “School for Scoundrels,” is best known for such films as “Road Trip” and “Old School.”