Whether or not you should view adult movies depends first on one main point. Since your email lacked any other information, there is no way for me to determine that. If you are under eighteen, I say you should not. If you are an adult .well, that's a different situation.
Different people find fulfillment in many different ways.
For some couples, sex can grow boring over time, and very often, movies of that nature can improve, or even increase your sex life with your partner. That doesn't mean it is right for everyone. If they are legal where you live, and you are of age, then it is up to your own discretion. If you feel comfortable watching them, and you can gain some kind of marital improvement from them, then by all means, watch them.