I am using the newest version of iTunes on the base level retina MacBook and downloaded the HD version of Avengers and have a weird issue. Every time I pause the movie and press play, I'll get the spinning wheel for about 15 seconds. It does this every time. It also does this when I try playing it from the start. I tried reinstalling iTunes and tried using others movies and the issue is still happening. Anyone having the same problem? I can live with it but would like to fix it if possible. Thanks.