Taste (like humor) is subjective. If you went to see a movie that was reviewed as very funny...but you found it not funny at all...you either leave before the movie is over...or watch the movie. The ticket is not going to refunded. You won't be entitled to another movie...upon voicing dissatisfaction.
Actually, especially as the real money in movies is the concessions, managers tend to be VERY liberal about giving refunds for those who walk out on the movie early. In my 55 odd years, I've walked out on a movie maybe 3 or 4 times, always with good reason, and always getting my admission money back. Still, it was the equivalent of reasons I would send back food, like something technically wrong (like unintelligible sound) to something that was both offensive and unexpected (such as a Japanese person might have found with Mickey Rooney's performance in Breakfast at Tiffany's). Certainly I would not ask for my money back for something that, while offensive, would be expected (such as the violence in a slasher flick being too explicit).
However, note that this sort of thing is good reason to send back food in a restaurant; if the food was incorrectly prepared , or was not as advertised (such as containing a major flavoring agent not mentioned or even implied in the description).
I said it before, and I'll say it again: If you are not sure of the food, ask for a taste. If the food is as described and properly prepared, but you just don't like it, tell the waiter and ask him or her to send something else, and if they bill you for both dishes, pay the bill; a lot of the time they won't, as long as you don't try to pick a fight.