The creator of one of the most epic space adventures of all time also gets to claim credit for one of the silliest sci-fi movies ever created. There are a lot of bad '80s films, but a definite standout is George Lucas's Willow. Lucas wrote and produced this story, which centers around a heroic dwarf named Willow (Warwick Davis) who just wants to be a sorcerer, tasked with protecting a baby from the evil Queen Bavmorda (Jean Marsh) with the help of Madmartigan (Val Kilmer).
It's one of those fantasy films that couldn't find a tonal balance, but that doesn't completely cover Willow's problems. The movie tried to copy the formula established by The Lord of the Rings novels, but while Peter Jackson's adaptation became of the best in the history of cinema, Willow grew more ridiculous in hindsight.
Unlike delightfully dark and strange films like Labyrinth or Dark Crystal, Willow was not destined to become one of the most beloved fantasy movies of the '80s. It was destined to become nothing more than George Lucas's embarrassing attempt at fantasy (and to a lesser extent, Ron Howard, but he was still a young director so he gets a pass).