2002's apocalyptic zombie flick 28 Days Later was a shot in the arm to a stagnant horror film industry. Unfortunately, director Danny Boyle isn't back for this follow-up. Substitute Juan Carlos Fresnadillo (Intacto) can't quite replicate Boyle's kinetic camerawork; but he does OK, adding a few honest jump scares to a fairly standard script. It's six months after the initial outbreak of the Rage Virus, and the U.S. Army has arrived in England, helping to secure a small section of London for repopulation. Naturally, everything goes wrong and those American boys start getting a tad trigger-happy.99 minutes R.