Rights and Copyright

The consequences for trampling someone else’s copyright are not that dire. Since you’re a student, and probably broke, it’s not like 20th Century Fox is going to sue you for your life’s savings.

Hope you have to worry about these problems when the movie gets made. Until then, don’t.

How much needs to change to make re-registering your script worthwhile?

This is America. If you want your characters to say that TOWN AND COUNTRY was a boring, unfunny disaster, they can.