Art of Pain is an excellent example of all that is good in Independent film-making. A fun, amusing, well made feature that gives the viewer 90 minutes (or so) of solid entertainment. A mashup of styles and genres that does what films like this are supposed to do, entertain.
With quirky writing and cleaver dialogue the film pulls you along and keeps you chuckling all the way through. It's a film for people who get IT whatever IT is. And IT can be different for different people, that's why it's so good.
Definitely catch a screening if you can and hopefully you'll be able to grab it on DVD sooner rather than later.