With hundreds of teenage girls screaming excitedly outside the Vue Cinema in Leicester Square, passers-by might have been forgiven for thinking [Brad Pitt] or [Leonardo DiCaprio] was in town. The person causing delirium in London's West End was not one of America's biggest heart-throbs, however, but local boy Alex Pettyfer, who has just made his debut in the film <I>Stormbreaker</I>.