Is the theatre bad while pregnant

I’m currently 21w and I feel her move around quite a bit. No hard kicks yet. But went to the theatre and as soon as it got loud and they started with the previews she started moving like crazy!!!!

Is she ok? I know she probably is but I’m a FTM

And would just like some opinions

Obviously I know she can’t hear completely clear cuz all the fluid and fat that’s in there but it worries me ALOT