Keira Knightley's former boyfriend Jamie Dornan hates his scrawny body - and tried to grow a beard to disguise his skinniness. The ex-Abercrombie model, who dated the Pirates Of The Caribbean actress for almost two years before the couple split up in 2005, blames his inability to gain weight on his Northern Irish upbringing. He says, "I thought having a beard would fill my face out, because I'm really worried about looking too thin. "I suppose I'm lucky that I'm blessed with a really high metabolism and I can eat constantly and never get fat, but it would be nice to be a bit beefier. "We're not very rich, us Northern Irish, so we couldn't afford food."