I am a huge fan of this excellent Canadian tv show about two hopeless petty criminals who live on a trailer park (caravan site in english ).
The film centres around Ricky and Julian, and there friend Bubbles, all in jail (where they usually end up at the end of each series). Inside, they hear about "the big dirty" - that last caper which nets you enough cash to retire from crime forever.
Sadly I don't think this film is as good as the tv series. It seems strained in places, and does appear to be trying too hard. One for established fans only, I think.
If you havn't seen this show yet, try and get hold of a few episodes.