Congratulations! I had so many people tell me they'd take their really young babies to movies and how great it was because the baby would fall asleep and they could enjoy the movie, and I just always brushed it off (because I'm really not big on going to the theater for most movies). Anyway, last year we ended up going on a tour at our science center and since it was a lousy night for using the telescope, they got us into the Omnimax theater to watch "First Man," I think our youngest was around 5 months old and honestly, it was fine, he watched for a bit and then fell asleep.