His fans regularly discuss whether he looks more like 'an otter' or 'a hammerhead shark', but that hasn't stopped actor-of-the-moment Benedict Cumberbatch becoming an international sex symbol who's on the cusp of Hollywood superstardom. He's made 'geektelligence' hot in the insanely popular BBC series Sherlock, attracted critical acclaim in 12 Years a Slave and The Fifth Estate, and explored his dark side in blockbusters...