The 2007 musical film "Once" and its soundtrack is the first collaboration between Glen Hansard (singer of The Frames) and Marketa Irglova, a young Czech musician. The film won an Oscar for Best Musical (although, to me, this movie does not fit my idea of a musical). Hansard and Irglova play the lead roles in the film of two street musicians who meet in Dublin, Ireland, write music together and fall in love. The movie is really well-done and charming. Zak posted a while back about this movie and said he didn't see what all the fuss was about. But anyway, I really like both the film and the soundtrack. So I recommend at least giving them a listen.
For those of you who are familiar with this movie or music, you might be interested in this interview with Hansard and Irglova on NPR's "Fresh Air." I found it to be really interesting and a good insight into their music writing and collaboration process. Listen to the interview here