Kirsten Dunst Visits 'Conan': Talks 'Melancholia' And Lars Von Trier Running Around Naked

Danish director Lars von Trier is known as a somewhat eccentric figure in Hollywood. He traffics in the uber-dark and landed in some hot water after Nazi-talk got out of hand at the 2011 Cannes film festival.

Kirsten Dunst visited "Conan" Thursday night to talk about her upcoming drama "Melancholia" and ended up revealing even more of the director's eccentricities.

According to the actress, instead of giving hugs, von Trier prefers -- for men and women alike -- the butt-tap, which the actress affectionately called "a little love tap."

And, if the cast is ever feeling down (maybe because of "Melancholia" is a story of deep, dark depression and the apocalypse) the director "likes to pull his pants down and make everyone laugh."

...What?

Apparently, von Trier had dropped trou while on-set and tried to flash Dunst, "I had an umbrella, thank god."

She used said umbrella to shield her eyes from a full monty-ed von Trier, who had decided to run around Dunst, hoping to catch her eye.

The actress also shared some sexy stories about Germany and revealed that even Disney movies like to play around, von Trier-style.