Here's the list of the actresses, who played Eddie Redmayne's mother:
Clare won her 3rd Laurence Olivier Award for this role. (Wikipedia)
Tony interview (x) question: Who was the best film mother, Angelina Jolie [in The Good Shepherd] or Julianne Moore [in Savage Grace]?E.R.: Oh man, there we go! As far as the films are concerned, there’s no question Julianne’s character is the worst mother who ever existed. Barbara Baekeland was an absolute tyrant. Julie came and saw the play (Red on Broadway) the other day, and Matt Damon, who played my dad in The Good Shepherd, came with his lady wife the other night, so it’s been lovely to reconnect with them. Hmm, the best mother? Well, the reason I got cast in Savage Grace is because I have freckles and reddish tinge of hair, which was ideal for Julianne, and the reason I got cast in The Good Shepherd is because I have massive lips. So I have a lot to thank both Angie and Julie for!
(She played Lily Potter in the Harry Potter movies)
Update March 15, 2015 screencap from the film
Related Youtube videos: My Week with Marilyn UK premiere interviews, interviews about Savage Grace, a scene from the Pillars of the Earth - Jack returns from France and Eddie Redmayne scenes from The Good Shepherd. (If you have trouble playing the videos here, click on the Youtube signe to watch it on Youtube)