$1 movie rental coupon - only 48 hours to view complete movie?

Hello-I appreciate the $1 on demand offer to rent movies that are $5.99 or less. Here is my issue: I have chosen to rent movies previously and each time the movie begins to play immediately. Then I get a message that I now have 48 hours to watch the film in its entirety. Is that the standard practice or is a setting on my account incorrect?

Yes, I want to rent the movie for $1 but I don't want to watch the movie immediately and start the 48 hour clock. Does that make sense?

Please let me know if I am understanding the process correctly or if there is a solution to rent the film via my TV but to watch it immediately.