Last Circus was really really amazing. It reminded me a great deal of Brian de Palma's Phantom of the Paradise, but just very much more over the top. Gorgeous looking, unrepentantly violent, and very, very funny.
It was fun to experience with a big audience. You could actually feel the uncertainty in the audience, as at times, they weren't sure if they were supposed to be laughing or cringing. Detention was great, but this was my favorite film from SIFF.