The trailer for the third and final Night at the Museum instalment is out, and shows the late Robin Williams at his comic best.
The much-loved actor reprises his role as Teddy Roosevelt in director Shawn Levy's Night At The Museum: Secret Of The Tomb, in which the museum characters go to London to recharge the magic that brought them to life.
In the newly released trailer Williams helps co-star Ben Stiller navigate vicious jungle cats and explains what the United States is to a heroic Sir Lancelot.
The movie, due out in December, is Williams' second-last big-screen role, but is the final time the Oscar winner is captured on film - his final character is a voice part alongside Kate Beckinsale in 2015's Absolutely Anything.
It also stars Owen Wilson, Steve Coogan, Ricky Gervais, Dan Stevens and Ben Kingsley, along with Australian Rebel Wilson.
