George Lucas wanted to make Flash Gordon, but we got Star Wars. Who knows how Flash Gordon would have turned out if he had made it.
There was a campy movie version done, but though the actors were fair enough, it really was a stinker in many ways, in my opinion, because it savaged the material it was taken from by spoofing everything. That doesn't always work.
Some consider it a great film because of Queen's great music, but...others have other opinions. If you grew up with Flash Gordon, the campy version stunk to heaven..