Wow, we can probably take the 100 greatest films in America’s history (yes, I realize this is subjective, but let’s pass on), and find in each and every one of them some word or act, even one that is not corrected, that may give rise to some small tendency to give greater acceptance to evil. Do Catholics have a duty to avoid or boycott in case of the slightest grievance? I’m surprised that so far some in this thread have implied this sort of logic.
Yes, there is an element of cooperation with evil in participating in or consuming the movie. However, as long as furthering the depicted evil is not intended, it would seem to be remote enough and within proportional to the good achieved. Obviously some movies cross the line, especially when the evil act is duly emphasized to be the main question of the movie (etc.). If the Catholic actor were to avoid all such scenes, however, then that would deny the actor a chance to influence the movie culture for good.
Each movie is indeed its own question, but a proper cooperation-with-evil analysis along with a prudential discernment on scandal (a high barrier nowadays, for non-children’s movies) should easily resolve the matter.