This is a brand new membership for the Castle Cinema - and if you’re aged between 15 and 24 IT’S FOR YOU What you need to know: It’s FREE TO JOIN. Yes, capitals because it’s awesome. It means you get £5 Tickets to films ALL DAY EVERY DAY. Still not convinced? You’ll get priority booking to certain events too! Did we mention it’s free? IT’S FREE. How do you join?