The Little Britain star has a cameo as a body-snatcher in the new film Virgin Territory, a period teen comedy starring Mischa Barton and Hayden Christensen.
But he has hinted that he thought the movie is a dud.
He told The Sun: ‘I have done a few cameos in movies and quite enjoyed it - other than this one.
‘I did this part because I liked Hayden Christensen. I do this scene in the start of the film. I’m playing the cart pusher. All I was thinking as I was doing that was, “What am I doing?”
‘It was terrible, that’s the way my mind works. It’s terrible.
‘I was thinking, “I wonder if the review will say: Look out for an unfunny cameo from David Walliams.”’
The film is set in Italy during the Black Death, when a group of young Florentines tell each other stories about love and adventure.
It also features Nigel Planer, plus Neil Edmond, James Rawlings and Justin Edwards from sketch group The Consultants as a trio of bandits.
The film has so far only been released in France – and straight to DVD in Greece.
Here’s a trailer:
