The auction doesn't say whether the SXSW tickets are just for Music or include Film+Interactive as well (which is what I'm interested in).

Good question! We'll check and find out!

Okay, here's the update: The SXSW badge is a music badge which means you get to scoot to the head of the line for all music stuff, but this does not get you into the film or interactivity stuff. We'll update the description with that info, and thanks for the question!