Tracy Morgan’s antic demonstrativeness and Bruce Willis‘ slow-burn dourness would seem to provide a solid foundation for a buddy cop comedy of sharp, amusing contrasts, but the meandering, listless, tonally schizophrenic Cop Out serves as ample proof that actors can’t merely show up on the day of filming and wing it. This is a banter-driven comedy in which most of the banter just falls flat. For the full review, from Screen International, click here. (Warner Bros., R, 109 minutes)