Andy Serkis has revealed that one of the unexpected joys of playing Alfred in The Batman was being able to work with director Matt Reeves while "wearing a pair of trousers".Serkis has become accustomed to performing for Reeves while wearing a motion-capture suit to play ape leader Caesar in Dawn of the Planet of the Apes and War for the Planet of the Apes.The Batman is in IMAX and cinemas from 4 March, with IMAX previews from 3 March.