From shrubbery to Spielberg, newcomer Jeremy Irvine secured the lead role in War Horse not long after playing a tree on stage. Digital Spy sat down with War Horse's Albert Narracott to discuss his rapid rise to fame, keeping his feet on the ground and why he struggles to watch himself on screen.

Get all of our War Horse coverage here: http://www.digitalspy.co.uk/movies/completecoverage/war-horse/