fix video app black screen for ipad

Try both of these things and see if one of them solves your issue.

Quit the video app and restart. Go to the home screen first by tapping the home button. Quit the app by double tapping the home button and the task bar will appear with all of you recent/open apps displayed at the bottom. Tap and hold down on the video app icon until it begins to wiggle. Tap the minus ➖ sign in the upper left corner of the video app icon to close it. Restart the iPad. Restart the iPad by holding down on the sleep button until the red slider appears and then slide to shut off. To power up hold the sleep button until the Apple logo appears and let go of the button. Try the app again and see if the movie is there and will play.

If that didn't work - Search for the movie. From the home screen swipe to the right and the Spotlight Search feature will appear. Type the name of the movie in the field at the top, if the movie shows up in the search, tap on the icon and hopefully it will begin to play. Let it play for a few minutes then tap Done. Return to the video app and see if it is in there now.