 Paddy Considine visited Cambridge to present his directorial debut, "Tyrannosaur", and the Festival opened in style with a special preview of "Tinker Tailor Soldier Spy".In attendance were the director, Tomas Alfredson, screenwriter Peter Straughan, and two of the film's lead actors - Gary Oldman and John Hurt.The centrepiece this year was season of a dozen Hitchcock films, stretching from his early silents to his peak period in the 50s and early 60s.