Night at the Museum: Secret of the Tomb (PG)
The third installment, Night at the Museum: Secret of the Tomb may be the best, and even the generally wound-too-tight Ben Stiller -- once again playing a bemused Museum of Natural History guard -- is easy to tolerate. This time around, it turns out that the very thing that allows the museum's creatures and historical peeps to get up and move around -- a magical golden tablet from ancient Egypt -- has gone out of whack. For some reason I've already forgotten, Stiller needs to go to the British Museum to get things straightened out. Dan Stevens makes a dashing, if bumbling, Sir Lancelot. Stiller has a wonderful bit in which the Neanderthal who idolizes him — played by Stiller himself, wearing a prosthetic brow bone and a set of fabulously decrepit fake choppers — shadows his every move. And even though, reprising his role as the Bull Moose, Robin Williams does all of his usual twinkling, this time there's something deeply moving about it: Secret of the Tomb sends him rough-riding into that good night, and it's not a bad way to go.