You've seen the photos -- but now, check out Michelle Williams in action as Marilyn Monroe in the first trailer for "My Week with Marilyn."
There's no doubt the former "Dawson's Creek" star looks the part with her padded hips and blonde hair, but does she have Monroe's speech habits down?
The movie, which also stars Emma Watson, Kenneth Branagh, Eddie Redmayne and Judi Dench, opens next month.
Will YOU be seeing it?