Rebel Wilson joins new Night at the Museum movie

Comedienne Rebel Wilson has become the latest star to join the cast of the new Night At The Museum movie.

The Bridesmaids actress will join Robin Williams and Ben Stiller to play a night guard working at London's British Museum, the setting for the third instalment of the hit comedy.

Former Downton Abbey star Dan Stevens has also signed up to the film and is set to portray King Arthur's sidekick Sir Lancelot.

Night at the Museum 3 is due to be released later this year (14).