Sandra Bullock has been the victim of sexism in Hollywood.
The 51-year-old actress - who won an Oscar in 2010 for her role in 'The Blind Side' - admitted that she has come up against problems in the industry simply because she is a woman.
She said: "I never knew that there were limitations where I was looked at as less than until I was actually pretty deep in this business and I had a pretty unsettling moment, and I went 'Oh my God, I'm being treated this way because I'm female'.
"I grew up to be exactly who I was supposed to be and have the opinions I wanted to have and didn't think there were limitations to that. So I thought, politically, I was pretty open minded and could speak my mind and then I saw I wasn't supposed to."
Sandra also revealed that her political views are shaped by what is best for her five-year-old son Louis.
Speaking during a press conference for 'Our Brand Is Crisis', she said: "I just want what's best for our country. I would like my rights represented and those of my son - very selfish views and I think everyone else has them."