Today is the 31st anniversary of Jeff Goldblum’s 1986 version of The Fly. But did you know there are several other versions?

For many people, Jeff Goldblum’s version is the only one they know, and to be fair, it is probably the best. Directed by David Cronenburg (Scanners, The Dead Zone) and co-starring Geena Davis (most recently seen in the first season of Fox’s The Exorcist) alongside the main star, the brundlefly has become the image that pops into most people’s heads when you mention the movie.

Goldblum’s version of The Fly spawned a sequel. In The Fly 2, Seth Brundle’s son, Martin, who was born with some of the BrundleFly’s genes dormant inside him, continues researching the telepods that caused his father’s mutation. As he ages though, the fly genes awaken inside him, transforming him into another human-fly hybrid, one far deadlier than his father. It’s a race for Martin and his girlfriend to find a cure before he loses all humanity and before the corporation sponsoring the telepod experiments claims him for their own nefarious purposes.

There’s not just a sequel though, there’s also the original version.