There are two time limits you need to be aware of when it comes to iTunes Movie Rentals. The first starts once you play the rented movie for the first time. After hitting play, you have just 24 hours to finish watching the movie. If you don’t finish watching it in that time, the movie will expire and be unplayable.
The second time limit is how long you have to watch it the first time after download. In this case, you have 30 days from the day you rented the movie to watch it. If you don’t watch the movie in that 30-day window, your rental will expire.
For the time being, though, there is a way around these limits.

