She then thanked "magical filmmaker and human" Bradley Cooper, and said she would always "cherish" the experience of working with him.
Colman, who did not attend the ceremony, picked up the best comedy actress prize ahead of fellow Brit, Mary Poppins Returns star Emily Blunt.
When the award was presented, Amy Adams was the first to be announced as a victor. I am rushing to her now to say goodbye.
Roma beat out an impressive field of Best Picture nominees to take home the award, including Mary Poppins Returns, Vice, A Star is Born, If Beale Street Could Talk, Green Book, First Man, The Favorite, BlacKkKlansman, and the Ryan Coogler-directed Marvel Studios filmBlack Panther. Keri Russell and Matthew Rhys were unable to make it.
As for other films honored within their specific genres tonight, A Quiet Place took home the award for Best Sci-Fi or Horror Movie while Tom Cruise's Mission: Impossible - Fallout won for Best Action Film.