The most poignant moment is the farewell to Roosevelt, played one final time by Robin Williams. Otherwise, Night At The Museum: Secret Of The Tomb is an instance of an idea stretched far beyond its potential.

The appearances of Robin Williams and Mickey Rooney (who have both since died) adds extra poignance to a film that pretty much follows the contours of its predecessors.

Larry and his crew head for London and more slightly laboured mayhem, with slapstick gags that seem designed for younger viewers.

At least, for now, the museum seems to have closed its doors.