At the previous company I worked at, they have an arrangement with the movie theater across the street to hold our townhall meetings. Don't know what the going rate would be, but our townhall meetings would last anywhere between 1hr to 2hrs and we have them at least every quarter. Once in a while, the company would also host movie days for all employees. So, you definitely could do other things besides showing a movie but no food from outside though. This arrangement was with Edward's (now Regal Cinemas).