[TheGIMP]'s user interface is a very powerful, non-[MDI] design. WellUsedRhetoric says that AdobePhotoshop users will find it difficult to get to grips with the interface -- it suffers from the inevitable "It's almost, but not quite, entirely like AdobePhotoshop" complaints. There is an entire page devoted to this topic at GimpVersusPhotoshop. The interface will let you be extremely productive once you get to know it. Don't be put off by first impressions -- [read a book | http://www.gimp-savvy.com], or [post a question | http://gug.sunsite.dk/forums/] if you need help. For those of you who actually find the unique interface intuitive and productive, or just want to learn more, there's [The GIMP User Group | http://gug.sunsite.dk/]. The curious can visit [a gallery of GIMP artwork | http://www.gimpforce.org/]. 

  

 A subproject originally called !FilmGimp and now named [CinePaint | http://cinepaint.sourceforge.net/], which is based on a very old fork of [TheGIMP]'s source code, [is used in the film industry | http://linuxjournal.com/article.php?sid=6148] and has made its way onto Hollywood movies such as 2 Fast 2 Furious, Scooby-Doo, Harry Potter and Stuart Little. It is not a solution for the average home user's video editing needs though.