The girl didn't really do any other movies. I *think* this is her, but I can't be entirely sure.
It would have been really funny to me if one of the images flashing through the kid's head at the end when he's shooting that picture of Hitler would have been the pic of the crowd in 1914 when WWI was being announced and there's a guy in the crowd with a mustache that people think is Hitler, but probably isn't. (Pics of Hitler when he was serving in WWI are kind of unrecognizable to me, honestly.)
Some critics have complained about the "night stalking" scene with the gunfire going off, but I wouldn't.