Name of this holocaust movie?!

I remember there's a ballet at the beginning!. And there's a blond girl who goes in and out of the ghetto for food!. I forgot the name of the movie :'(

At the start of the movie, the ballet gets zerged by nazis and groups of people get thrown in the ghetto!. They try to survive and they fight back, and they make like there own group of people to fight back!. At the end they escape I think in a car :)!. I wanna see this movie again just I can't remember the name ><
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