Q: Apple tv I tune movie

                  I rented a movie from my apple T.V from I tunes called ''Cockneys vs Zombies'' as soon as i rented this movie,its started telling me that the movie is loading, and it wont play until 1hour and 35 min. After 20 min the movie started playing then after 15 min       of the movie playing, it's started telling me again that the movie wont play until 1             hour 30 min, then again 45 min, and again 1 hour 15 min, and so on. I rented so             many movies, in the past and i even bought movies from i tunes, and never had this       problem. I turn my apple t.v off and turn it back on, and still the same problem. I want     a refund for this movie because if i cant watch it, there is no use for me to pay to rent     this movie. I don't know why suddenly, it's started doing this, but if it happen again then i rather not rent any movies from apple.

P.S. can you tell me why this started to do this now?