Buying a ppv - DirecTV

I paid $6 yesterday to view the new Independence Day movie. It said it was good for 2 days. My son watched it last night. I tried to watch it today and about 5 minutes into the movie it stops and says I must pay again to see the movie. I thought the 2 day viewing period allowed on to watch it several times over that period. If it's on;y omce then this "2 day" viewing is misleading. What's up?

This question, "Buying a ppv," is about DirecTV channels, programming, equipment, and sports.