I love Casino Royale With Cheese, It's utterly bewildering display of zany nonsense plays to the bonkers brain I was given at birth.
It also gets a couple of references in my favorite novel cycle (Kim Newman's Anno Dracula series, Dracula Cha Cha Cha to be specific) thus adding to it's coolness.
It's a thousand times (at least) more funny than all the Austin Powers movies combined (not that that's saying much).
The perfect semi sequel to What's New Pussycat?