The Crown's Olivia Colman will be joining the cast of the upcoming Willy Wonka origin story along with Rowan Atkinson and Sally Hawkins, Variety reported on Wednesday. How sweet it is: The Crown's Olivia Colman will be joining the cast of the upcoming Willy Wonka origin story along with Rowan Atkinson and Sally Hawkins, Variety reported on Wednesday Wonka is …