You might be right. With action movies, the setting and nature of the action changes, but it's recognizable. Whether it's gangsters with revolvers, cowboys smashing chairs on each other, gladiators, Bruce Lee, whatever, it's all good.

With comedy, the audience has expectations. Back in the day, it seemed like people would laugh at anything. Oh, I get it, that guy is an alcoholic. That's it. That's the joke.

With romance, social conventions come into play. Watch some old romance movies. The good-looking guy is stuck on a tramp steamer for a month with the rich heiress. Get passed the fighting and wicked banter, and bang her already.