5. Adam West (Chicken Little) A great example of spot-on voice casting: come the film's end, when Chicken Little's adventures are rethunk as a daft Hollywood action movie, who better than Adam 'Batman' West to voice Little's big-screen incarnation?

4. Robert De Niro (Extras) Okay, so it's not a movie, but he's a movie star, and kudos to Steven Merchant and Ricky Gervais for convincing De Niro to appear in the final episode of Extras. And have him fall in love with a tacky nudie pen.

3. Pamela Anderson (Borat) Fair play to Pammie - she let Borat attack her with a lovingly embroidered sack at the climax of the year's funniest movie, in the film's only completely staged gag.

2. Clive Owen (The Pink Panther) Everyone thought he would (or even should) be the next Bond. Then Daniel Craig got it. So it's great to see Owen shove tongue firmly in cheek here as a gadget-laden Brit secret agent encountered by Steve Martin's Clouseau in a casino.

1. Elvis Costello & Mos Def (Talladega Nights) A double-cameo so throwaway it's almost genius. "Was that Elvis Costello and Mos Def?" asks Will Ferrell's Ricky after spotting the pair at Jean Girard's (Sacha Baron Cohen) breakfast table. "No," replies Girard. And that's it.