Best known as Isobel Crawley on "Downton Abbey", or Harriet Jones (Prime Minister) on "Doctor Who", Penelope Wilton also took the chance to play the Queen in a family film.
The film in question was Spielberg's live-action rendering of Roald Dahl's classic novel, "The BFG". It's a heart-warming and charming portrayal of the Queen, as she interacts with Sophie and the BFG to try and put a stop to the child-eating giants rampage.
It's not quite the real Elizabeth sharing a sandwich with Paddington Bear, but the sweetness of the concept allows for children to form an attachment to the monarch and see her as a hero working for their protection.