 In 1955 Olivier and Leigh were invited to play leading roles in three plays at the Shakespeare Memorial Theatre , Stratford . They began with Twelfth Night , directed by Gielgud , with Olivier as Malvolio and Leigh as Viola . <unk> were difficult , with Olivier determined to play his conception of the role despite the director 's view that it was vulgar . Gielgud later commented : 
