Yup, bring the GF (with her purse
)
Buy a large soda, then dump 25% out so you have room for the rum
Actually, when I go to movies nowadays, I almost always go to Alamo Drafthouse.
1 row of seats, next row is like a long bar table. You can order buckets of beer and they have a full menu with waiters running your orders.
Movie is about the same price, maybe even a little cheaper, food is actually good and reasonably priced, end up spending a little more than at a standard theater, but it is a much nicer experience.