Stevens joins Night At The Museum 3
Dan Stevens is to star in the third Night At The Museum film.
The former Downton Abbey actor - who starred as Matthew Crawley in the ITV period drama before being killed off in last year's Christmas special - has been cast as Lancelot in the movie, reported Variety.
The third instalment will be set in London although plot details have not been revealed.
Shawn Levy is returning to direct Night At The Museum 3.