It won’t let me watch my rented movie i downloaded.

Hey, so i rented a movie (“ Five Feet Apart”) from the apple itunes store. When it finished downloading i clicked on “watch” which it took me directly to the “Apple TV” app. When i click on play it takes me to the watch screen and a notification pops up that says “This video can’t be played because you don’t have access to it or it’s not longer available.” How do i fix this problem. I have an early flight tomorrow and i really want to watch this movie. If anyone knows how to fix this problem please let me know. Thank you.