Movie theaters have existed for over a century, and over that time they have resorted to all sorts of tactics to draw in customers. When thefilms are good, thats usually enough to pack em in. When the movies arent so good or when other entertainmentoptions look more enticing well, you know what they say about desperate times and desperate measures.Through the decades, those measures have taken on a variety of forms. One of the most common is the introduction of a new gimmick, a marketing hook of some kind that sells a film as a unique experience in the annals of cinema history. These can include new film formats, new projection technology, or flat-out huckster nonsense.Some of these gimmicks were so bizarre they took on the quality of the wreckage following a high-speedcar crash. You didnt necessarily want to look, but you couldnt help yourself; youneeded to see. Others were so fun they became full-fledged Hollywood trends, attached to films for years or decades as studios chased the almighty dollar as far and as fast as they could.The list below gathers up 12 of the most notable movie theaters gimmicks,excluding the ones that are still regularly hyped in multiplexes. (Who wants to seeThe Fantastic Four: First Stepsin D-BOX with me???) It makes you wonder: What gimmickwill come to movie theaters next?Once-Beloved Movie Gimmicks That Have Faded AwayMovie theaters have resorted to some interesting tactics to lure in viewers through the years.READ MORE: 12 Things We Miss About the Way Movie Theaters Used to BeGet our free mobile appThe Craziest DVD and Blu-ray Box Sets Ever MadeYou wont believe some of the movie box sets that have been released through the years.