I love that film, only saw it myself a few weeks ago. Watched it over a few days on the train to and from work and was proper laughing to myself. "Rubber dingy rapids bro"
My favourite quote is when he asks..."Is this a gesture?" Cracks me up every time.
On a side note, did you know that the thick dude is also the fonejacker? He's ace!!
Just watched that trailer, it shows far too much man! If you are planning on watching the film, don't watch the trailer..if you do, don't bother watching the film and save yourself 90 minutes.