Return of the Fly is the cheap follow up to the 1958 classic The Fly. Despite being released only a year after the original, Return of the Fly is in black & white. It’s a little more atmospheric that way, but the B movie feel hasn’t gone away. Return of the Fly is essentially a copy and paste of the first movie with a more unknown cast. Horror legend Vincent Price is the only actor who gives the sequel any credibility.
The most obvious way to continue the story is to have André’s son Phillippe pick up where his scientist father left off. Philippe’s mother is dead, but his Uncle François is still around. Most of the movie is just Philippe rebuilding his father’s matter transporter and testing it out. Without the mystery angle, it takes about an hour to see the half-human half-fly again. So a criminal assistant trying to steal his work is added. There’s still a romance, but that’s not given much attention.
The only mildly disturbing addition is a police detective becoming a half-hamster hybrid. Other than that, Philippe becomes a fly exactly the same as the first movie. Except that his giant fly head looks just as goofy as the human head superimposed on a fly body. Another difference is having the human body run away, while the fly body is easy to capture. It’s also less clear whether the fly is a monster or not. Although there’s a much happier ending, Return of the Fly is too derivative to fly on its own.