Need to get my wife to shush when we watch movies together.
Why do you want her to shush?
She was laughing too loudly that I couldn't enjoy my movie
It is hard to hear movies when people laugh but that is the point of watching a movie together. Otherwise watch the movie alone.
No it's her fault that she's so loud and I'm pissed at her.
You either need to put up with her noise or watch the movie alone. You can't and shouldn't control how she reacts to movies.