I have been using Bookmyshow.com from many years. I use its android application. This app gives you complete information about movie i.e. synopsis, cast, duration of movie, reviews and ratings of the audience. It is very useful for getting information of theatres, prices, show timings, searching of shows according to venues and movies. Not only for movies but also dramas, events, plays schedule could be searched.
Also ticket booking is very simple, you can select the seats according to your preference. Very very useful. This is a must have app in your mobile. Thank you. There is no other better site for booking tickets than bookmyshow