Terry Gilliam's 1981 fantasy adventure Time Bandits is a favorite movie of mine; it's just one of those films I grew up with that I still enjoy watching. Here's a great piece of fan-made poster art for it, created by Fro Design Co.
The story basically follows a young boy who accidentally joins a band of dwarves as they jump from time-period to time-period looking for treasure to steal. If you haven't seen the movie yet, you should definitely check it out!