Do you think I go a bit over board by gettin upset when he watches movies with nude girl parts?

This is going to be a completely serious question that I have for you. It could and will determine how exactly you mean your question. Are you a female posting as a male or are you a male in a homosexual relationship? Your question means 2 totally different things depending on your response.

Hes with you and not those porn girls.
So make the best of it make sex fun , which will have him thinking those girls are amatures compared to u

Get over it, jealousy is never a good thing. Who cares what is on the tube? It's more important who is next to you. And why don't YOU enjoy it too? Watching sex on the tube gives room for a healthy fantasy life, role playing and tons of other goodness. What's the harm?

BTW are you posting as a male asking from the shoes of a female? ?

Yes, Its common for a girl to get upset if her guy watches nude girls or porno.
All guys do watch . so maybe you should not think about it so much and just ignore this.
Your guy will not leave you just cause he watches nudes :)

Yes. What is inherently wrong with the human body and enjoying the beauty of it. Even in renaissance times humans looked on the naked body as beautiful. It is only when we put our puritanical views on it that it becomes disgusting. He is a male and that means he is always going to be looking whether he is obvious about it or not. It doesn't mean that he doesn't like you, but it is an insecurity within yourself that has you be jealous and the more jealous you are the more it will persist.

It also doesn't mean that you can resolve your jealousy easily. Trust me I know. My partner and I are in the sexual field and she still get jealous from time to time about things that we do. And it is her insecurities due to things that have happened to her in her past that drives most of them.