totally understandable. you don't need much though. The disc specs are a really nice addition (duration, video format, audio type, special features, etc). That fills up some of that space. For text, I generally rely on what the editor posts for the website summary, and/or synopses from IMDB.
Sometimes simplicity really works, and you need no text, othertimes it obvious it just was left off. I think the Independence Day cover works without text just fine. Those floating heads fill the void.... However the Nemesis cover shows a perfect space where text could have / should have gone.
Just some thoughts
really great work otherwise!