the soundtrack for this movie was done entirely by Belle & Sebastian, but most of the songs recorded by them aren't in the movie. their full soundtrack is released as an amazing album.
that soundtrack is better than the movie itself in many ways, since the moral statement of the film, about the power of art to distort reality gets lost in the spectacle of the movie. the unsuccessful film screening is a perfect summary of the whole film. not to say i didn't like this movie, i do. i just think that it has a muddled point and muddled execution, which is an interesting commentary on the ability to control your art and say a good moral message: life and art get messy and a real moral tale is hard to tell realistically.