This week in theaters:

ENDER’S GAME (PG-13): Asa Butterfield (“Hugo”) stars as the young man drafted into military service during a war against aliens in this adaptation of the popular novel by Orson Scott Card.

LAST VEGAS (PG-13): Michael Douglas, Morgan Freeman, Kevin Kline and Robert De Niro are a group of old pals who head out to Vegas for a wild bachelor party. There may be hangovers.

MAN OF TAI CHI (R): Keanu Reeves’ directorial debut stars the formidable martial arts master Tiger Hu Chen, who is embroiled in an underground — and dangerous — fight club.