Slain teenager Oscar Grant, Jr's girlfriend has vowed never to see the movie inspired by his death at the hands of an Oakland, California police officer - because it will bring back too many bad memories. Sophina Mesa was a young mum when her partner was killed early on New Year's Day (01Jan) 2009 during a misunderstanding on a train platform, and though she was happy to meet with Melonie Diaz - the actress portraying her in acclaimed new film Fruitvale Station - to help with her research, she won't be checking out her performance. Diaz explains, "She hasn't seen it and she won't see it... People want to move forward." But that doesn't mean Diaz wasn't under pressure to deliver while portraying a woman who was never going to see the film: "This is a movie about someone's life... They (Grant and Mesa) have a daughter and one day her daughter's gonna watch this movie and I don't want her daughter to watch this movie and go, 'That's my mum? I don't know who that woman is,' so there is a responsibility. "I wanted to look like her and kinda get her feeling of the relationship."