There was a movie out a few years ago about a radio station in the 30's/40's when radio dramas were popular. There ends up being a murder at the radio station. It's a comedy/mystery. Anyone remember the title? I can't remember anyone that starred in it either.

Radioland Murders (1994) (http://en.wikipedia.org/wiki/Radioland_Murders)

Radioland Murders?
http://www.imdb.com/title/tt0110939/