Superman 4 The quest for peace
With Nuclear man! Plus it's the only Superman movie I've got. Why? Cuz I like it, that's why.
TB Tabby commented
Why haven't they riffed this already? It's legendarily awful! Do I really need to list the three reasons they request? Fine...gonna be hard picking just three, though...
-The titular "Quest for Peace" consists of a kid writing a letter to Superman asking him to stop the threat of nuclear war. This actually isn't such a bad concept. You could tell a good story focusing on Superman's struggles with knowing how far he can go to help others before he becomes Hobbes' Leviathan, the dangers of interfering in international politics and balances of power, and how to explain that to a child...but this is a Cannon film. So how does the movie deal with the delicate politics of the Cold War? IT DOESN'T! Superman just waltzes into the UN, declares he's going to get rid of all the nuclear weapons...AND EVERYONE CHEERS. Nobody utters a single word of protest at giving up their nukes, or asks what gives Superman the right to declare this without even asking the world leaders if they're willing to go along with it, If there had been a period of silence followed by Superman reminding everyone his eyes shoot lasers I'd understand, but nope. Superman's doing it, so it must be okay.
-Lex Luthor gets a new henchman: his nephew, Lenny Luthor, played by John Cryer. And yes, he's basically the same as he was in Pretty in Pink. Every line he speaks will make you wish the silent film era never ended.
-The special effects are laughably bad. You have the shot of Superman flying at the camera which is used over and over again so many times that every drinking game for this movie is required to include it, the falling effects that make people look like they cast Feather Fall, and, of course, the scene where Superman rebuilds the Great Wall of China by staring at it. He's got Wall Repair Vision, a power I suspect was invented so that "shooting rainbows that spawn a tiny version of him" wouldn't be his silliest power anymore.