Simon,Hello! I agree with your parents, because sport makes our health. If you don't do any sport, you'll not be a healthy person. I think that movie is life.
I do some things of different kinds of sports. For example, I run every morning and do exercises, in the afternoon I swim in our swimming pool or just in the river. I like sport. And I keep the healthy eating. It's very important to keep fit and healthy, I think.