Simon Pegg brought happiness to fans in Leicester Square tonight at the London premiere of Hector and the Search for Happiness. Pegg stars in the comedy drama as a psychiatrist who sets out across the globe to find what makes people happy, and Rosamund Pike, who plays his wife, was also on the red carpet. Shaun of the Dead star Pegg, 44, admitted people often expected him to be happy all the time as a comedy actor.