Making the movie also made her examine her own views on gender equality, she said.
She made her film debut in the science fiction movie Death Machine 1994.
They have worked hard to keep their relationship out of the limelight since meeting on the set of the movie The Dream House, in which they play husband and wife.
Based on the play by Terence Rattigan, Weisz plays Hester, the wife of a British Judge who is caught in a self-destructive love affair with Freddie, a Royal Air Force pilot in The Deep Blue Sea.
Representing L'Oreal were Dutch model Doutzen Kroes, 24, and Lost actress Evangeline Lilly.
While Rachel looks hotter than high noon in the Sahara, she sadly never unwraps in those films.