Same issue. I recently purchased a new MacBook Pro & today is the first time I have tried to watch a movie in iTunes. Neither purchased or rented movies will play. I, too, only have a black screen, with only the controls (rewind, pause, play, etc.) viewable. No chapters listed, just the cover art of the movie at the top + names of the directors. Was on the phone with Apple Care for 2 hours & they couldn't figure it out.
When the senior advisor I was speaking with contacted iTunes to have a credit issued, she was told that they were aware of the issue & working on it. Said it is a problem with some Mac computers, but not other Apple devices.
Strange that iTunes would not have contacted Apple Care tech support to let them know about the issue. Also, before I spoke with the senior advisor, I was speaking with someone else at Apple Care who had also contacted iTunes to try to fix the issue by having them resend the rented movie to me & he wasn't told about the issue.
That was about 3 hours ago.
Senior Advisor said she would send me an email with my case # and her contact info so I could follow up, but she didn't. She took my phone #, so, hopefully, she will call to let me know when the issue is resolved (not holding my breath though).
