Ehmm I watched Castaway on the Moon this weekend. It's a beautiful movie.
Some business man in Korea tries to commit suicide but ends up alive on a small island in the Han river in Korea. He can't swim so is left to defend for himself with the garbage which gets thrown away by people in the river.
At the same time there's this hikikomori girl who hasn't been outside for years and lives by a strict routine every day. She's fascinated by the moon and hates sun. With her camera she often takes pictures of the moon, and once a year when the streets are empty scouts the area. And then... she comes across the guy who's stranded on the small island with her camera. She thinks he's an alien and starts to get interested in him. Here things get really great.

Suggestion! Really good.