The Adventures of Baron Munchausen is a 1988 fantasy adventure film co-written and directed by Terry Gilliam, starring John Neville, Eric Idle, Sarah Polley, Oliver Reed, Uma Thurman, Jonathan Pryce and Valentina Cortese.
An international co-production of the United Kingdom, the United States and Germany, the film is based on the tall tales of the 18th-century German nobleman, Baron Munchausen, and his wartime exploits against the Ottoman Empire.
https://en.wikipedia.org/wiki/The_Adventures_of_Baron_Munchausen
Always loved this movie - wonderfully bizarre. And Uma Thurman in one of her first film roles as Venus was life changing :)