Can I sue for a movie that my minor saw and was very disrespectful in language?

No, the Internet is not subject to the same laws and regulations that over-the-air television is. There is a rating system for commercially-released motion pictures but that doesn't necessarily apply to films released on the Internet. And in general films are considered protected speech, no matter how they're released or viewed. It is up to a parent to determine what is appropriate for his or her child to view.