The Rock shakes his way to number one

Earthquake disaster movie San Andreas has topped the US box office, taking $53.2m over the weekend - allaying fears that audiences in quake-prone regions would avoid seeing it. The film, which stars Dwayne "The Rock" Johnson, knocked last week's top film Tomorrowland, which debuted with $40.7m (£26.7m), into third place. Pitch Perfect 2 was at number two and Mad Max: Fury Road was fourth. Avengers: Age of Ultron - 2015's biggest US film so far - was fifth. I've already seen all five, and a particular scene in San Andreas, where one character was trying to attract the attention of The Rock's boat with a laser pointer, has got me thinking that it may be time to clarify my position on those things. For starters, NEVER point them at aircraft unless you're trying to get a rescue vehicle's attention, in which case you should do three short flashes, then three long flashes, then three short flashes (SOS), and try to point it away from the pilot's eyes. They're good for presentations and as a cat toy, but it's not a good idea to use lasers to gain an unfair advantage in a staring contest. Also, don't point them at wildlife. No, seriously, don't.