You generally shouldn't trust movies to be fact, although it could happen.
Universities typically have financial aid programs that help you pay for tuition. Those should help, although you'll still need to find a decent job while in college. If you're interested in science, then it's possible that you could be a lab assistant or something like that to earn money and experience.
And I must say, your English is very good. You just need confidence that you can manage more advanced topics. Trust me, I never thought I could understand quantum mechanics, but with a bit of thought and time, I can grasp it. All you need is to try.