Adaptation Decay 8: Super Mario Bros.

This is the big one... 1993's Super Mario Bros. was the first video game movie, and it certainly set a... tone... for the quality of things to come. It's almost universally reviled, and it's been talked to death by people a lot smarter than us.

However, revisiting this movie directed by monsters has revealed something surprising: While it's a horrible adaptation, it's really fun to watch. The casting is ridiculous, the set and costume design is completely wrong, and it plays fast and loose with the source material in ways that make it a fascinating watch.