Never. I've seen people instantly go from liking a static image to disliking it upon learning it was AI generated. The same applies to other kinds of media. No matter how "good" it is, knowing that it was created by an unfeeling algorithm ruins it for most people.
People will like them when they’re good content. Right now we’re stuck in the in between where it’s kind of all or nothing ai, but it will get grayer when the feedback loops are tighter and building ai movies is more interactive. Same thing with any special effects really
I think AI has its place in special effects, but "making a blockbuster movie for $1000" requires replacing all the actors, music, cinematography, everything that makes a movie "art" except maybe the plot. And I have never seen anyone respond well to AI "art" of any form. I've seen some fairly passable (if a bit boring) AI music passed around on Reddit and it was universally met with disgust simply because it was AI.