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

If you don't have any choice of leaving the baby back at home then you can take her along. But make sure you have baby ear plugs so that she isn't directly exposed to such loud sound in the theatre. Also, if you think your baby would let you sit through the entire movie then it is cool, else if he turns cranky and irritable during long sittings and new environment then I suggest do not spoil atleast other people's movie time. :) Unmarried people, movie buffs and in all, whoever do not have babies really tend to get angry if babies cry in the halls, as why the parents got the baby to a movie in the very first place. Been there, done that and also been there and felt that. ;)