Do you bring your babies in movie houses?

I don't think there will be any harmful impact on the baby. However, your own movie experience may be compromised as you will likely need to attend to him/her throughout the movie. Loud sounds from the movie may startle the baby or he/she may need feeding. Depending on how old your baby is, for infants, they will not be able to understand the movie. Though it may still be an interesting experience for him/her. If there is a short movie available, it may be worth considering. In general, I would still propose saving a movie treat for later when the baby is older. For now, a home movie date with the whole family may be a better option. At least one would get to enjoy a show in the comfort of one's own home and not having to worry about other movie-goers as well. :)