Apple TV+ catalog of movies

Apple TV+ displays many movies that I can watch, but a number of movies in the catalog of movies requires more subscriptions in the "How to Watch" block. Why do I need to subscribe or rent these shows (such as Sunshine) when I already pay for the Apple TV+ subscription??? If Apple TV has rental movies then they should have a different section titled Rental Movies. Not just scatter these rental titles throughout the catalog of movies. Very frustrating and irritating!!!! Enough so that many subscribers on chat rooms are cancelling their subscriptions for the lack of courtesy from Apple TV to inform subscribers of this practice. I am one of those subscribers that will be cancelling my subscription if this matter is not remedied by the Apple TV programmers. It has to be an easy fix to provide customers with a satisfactory product.