Is it good to take my 9month old baby to take movie theatre??

You can of course, but I would not recommend it dear. At this age, your baby is still too young and sensitive to the high amount of sounds that will be there in the theater. Even the visuals will be too loud on her eyes. Not to forget that with so many people around in an enclosed space, the chances of catching an infection are always high, as babies have very low immunity. It is also possible that your baby will be very uncomfortable in the theater, and will not like to sit in one place. If possible, leave your baby at home with elders, or if not, skip the movie for now. If you absolutely must, maybe you can plan it with your friends and your partner can plan with friends separately for now.