Movie HD Ipad does have a cover flow feature. BUT after entering over 900 movies into this app here are some of my complaints about it that you might want to consider before you invest much time:
1. The app is unstable at times. I've tried to reproduce what causes it to crash and can't figure out a pattern.
2. The look up movie feature accesses the internet and DOES a good job at finding the movie that you can add to your collection. BUT if you try to manually enter a movie the app crashes regularly. I barely got the title in and tried to select the rating (pg, r, etc) and bang- crash time.
3. Trying to email yourself a copy of the movie list results in bringing up the email window...then it crashes. I contacted the developer and he said that there was an update waiting for approval from apple. We'll see.