Banking on a gimmick is one of the biggest risks you can take when making a film. Some gimmicks, like Clue’s multiple endings, age well. Others, like the woeful computer-screen horror movie Unfriended, aren’t as successful. But if managed well and not used as a crutch, a gimmick can set your movie apart from the pack, especially in an age where it’s on a virtual shelf alongside thousands of other titles.
