Who knew Mary had a wicked cousin?

meRyl stReeP plays mary’s wacky cousin topsy, right. the oscar-winner was a prankster on set, pretending to slip and ‘face plant’ the floor on the first day of filming. ‘I thought, oh my God, we’ve killed meryl streep,’ recalled emily Blunt. ‘then she jumped up and said, “I learned that at yale drama school”.’