The timing of when movies are made available as either rentals or as part of a Neon subscription are set by our agreement with studios. You can tell which movie is a rental by the pink $ symbol.
To double check if a movie rental is available to watch as part of your Neon subscription before you pay for it, search for the movie title and it will bring up both versions of that movie. Select the green version (without the $ sign) to watch as part of your subscription. Or find the title under MOVIES.