Colin Farrell was shirtless over the weekend to hang out in Cancun with his sister. He and Claudine Farrell hit the sand together, with Colin showing off his six-pack. The Farrells treated themselves to the getaway in the middle of Colin's traveling to promote Total Recall. He took the picture to Comic-Con in San Diego, where we got the scoop on Kate Beckinsale and Jessica Biel's fight scenes. Colin also stopped in Paris for a photocall ahead of the picture's Aug. 3 US release date. Lately, Colin's also logged time on the Philadelphia set of Dead Man Down and is gearing up to shoot Disney's Saving Mr. Banks and Winter's Tale, about his native Ireland's great famine.