Inox: mall of Mysore is a really good place to watch movies, the sound and picture qualities are amazing, it is situated in easily accessible area for everyone in Mysuru and even booking the tickets is made easy with their exclusive apps.
The only drawback to this is that the ticket and snacks price is a bit high compared to the others but if money is not an issue and you are ready to spend few extra bucks this is the place to choose.