good movie ends up being a big box-office success, studios automatically think ‘sequel’ no matter what happened in the previous installment. It makes sense when called for (loose ends, other plausible storylines, etc.) but producers have a way of running something into the ground until it’s no longer profitable. Today, we view anything beyond a trilogy as overkill but before the 70s, it was commonplace to pump out a sequel EVERY year. Some series have 21 or more installments. Thank the Big Man upstairs TV came along. Anyway, check out our list of film franchises with way too many sequels and let us know if we missed any in the comments below.