Alligator (1980)

One of the major inflection points in the evolution of the monster movie was when well-informed fans started working behind the scenes, aware of all the tropes and knowing just where to push them to take something from cliche to slyly self-aware examination. The ur-example of this was the Joe Dante-directed Piranha, which took what could have easily been a movie simply following the trend of ripping off Jaws and turned it into something else entirely—someone was clearly paying attention, because when director Lewis Teague (later of movies like Cujo) was given the job of making a Jaws rip-off about a giant alligator, he threw out the original script and called in Piranha screenwriter John Sayles (later of several award-winning films) to help him craft something more interesting. Together, they produced a movie in the middle ground between traditional drive-in schlock, the intelligently eccentric B-movies typified by Larry Cohen’s entries in the genre, and the cartoonish and loving parodies that Dante continued to refine in the eighties—and it does it in a way casual and subtle enough that many critics of the time didn’t even catch the dark comedy at the heart of Alligator.