On the other hand TV series with stories spanning many episodes have become more popular. While individual episodes (40-60 mins) may be shorter than a movie, th

On the other hand TV series with stories spanning many episodes have become more popular. While individual episodes (40-60 mins) may be shorter than a movie, they're only convenient stopping points, like chapters in a book, not separate installments. So I don't think the problem is that long-form is undesired.