If you like Downey, I have to ask if you've seen "Kiss Kiss Bang Bang". There are all sorts of things wrong with the movie, but I had great fun watching it and Downey's performance was very interesting. I've got "The Singing Detective" queued up soon on NetFlix, which I anticipate will be a similar experience.

Seeing Val Kilmer playing a character called "Gay Perry" was a trip, and the girl was cute too...