Like in any job, accidents tend to happen when they're shooting a movie ... and sometimes those accidents turn out to be far better than what the director originally had in mind and are left in the film.
While studios continue to crank out one multiplex-filling cash grab after another, the rest of the world has been putting its own spin on them, quietly dipping those tired old cliches in pure liquid insanity.
Even classic horror movies, the serious ones that actually have the power to frighten, tend to feature at least one or two unintentionally hilarious moments. Here are some of our favorites.
People tend to be incompetent in movies -- that's how our heroes are able to make so many daring escapes. However, some plotlines are dependent on downright boneheaded incompetence.
Secrets drive the plots of some of the best movies. That being said, sometimes a secret is only as good as the writers' ability to cover huge gaps in logic.
We can't stress this enough: A horrifying amount of time and work go into things that will be forever unnoticed by everyone except a few members of the crew.
We've seen movies about aliens doing it with human women, 100-year-old vampires dating high school teens and Woody Allen hooking up with young starlets, among other unlikely atrocities. And yet, somehow, the writers always find new ways to top themselves.