The star, who dons prosthetics, wigs and a myriad of costumes to play a number of characters in the film, attended last night's event as part of the Glasgow Film Festival.
Actors Sean Biggerstaff, of Harry Potter; Greg McHugh, of Gary Tank Commander; and Marty Docherty, of Still Game, also attended the event.
Cloud Atlas, which was partly shot in Glasgow, stars Halle Berry and Tom Hanks, and is based on the best -selling novel by David Mitchell. It features six related stories spanning from the nineteenth century to a post-apocalyptic future.
Main picture: Martin Shields