Help with how to add album/movie art to MP4's

[tvandyck7]

I have several movies on my SD card in MP4 format. I created a folder in Astro named "Movies". Here they show up by title. Like everything else, they show up in my gallery as well under "Videos" and also "Movies". The problem is that in the gallery, they don't show by title but by a screen shot of the first frame of the film. Therefore, I can't tell which movie is which. Is there a way to add album/movie art to each one so that I can differentiate between them in the gallery? Or is there an app for that? Thanks