I have always been taught that the commandment to Honor thy Father and Mother, reached out into everyday life to include anyone in authority. And one of Jesus teachings to his apostles is "...give to Ceaser what is Ceasers, and give to God what is God's..."
Yes, the prices at the theaters are outrageously expensive, but you are entering their business, you know the business model, and they are treating you fairly by giving you the opportunity to decline and not participate in their high priced items. But they are "Ceaser", and they represent "authority" and if you have to make hidden acts to enter their establishment as you wish, then you are cheating. If you cannot walk right in without hiding anything, you know you are cheating. First cheating the business out of sales, and second cheating God out of your obedience, which you owe him at all times. Going to the movies is not a day off from obedience.
My wife and I will either go to McD's, or casual restaurant first to fill up and not be tempted or immediately afterward or, if necessary pay the crazy price.
But stop and think about it for a moment. If you set your own rules, and ignore God, then what comes next. . . abortion? Oh, wait a minute we already have that don't we, and the big boys don't think that is wrong either. I always wondered how it all began.