There is one movie starring Owen Wilson I would want to see again, but I can't for the life of me remember the name.

In one scene Owen gets into a dialogue with some British guy. It goes a little something like this:

British guy (angry): "Are you taking a piss with me?"
Owen Wilson: "What? Am I taking a piss with you? I don't even know what that means!"

Does anyone know which movie this is?
Thanx a bunch!