I think you owe it to your current customers to fix the numerous bugs in several features of the All My Movies programs. Every few months we get a new version that adds features without addressing problems with the program. The bugs in the batch update movie details were originally brought to your attention in 2007 and again in 2011, 2012, and 2013. We were told that these bugs will be fixed in the next version and that was at least 3 versions ago.
I know adding features can potentially make the program interesting to a greater number of people but not fixing bugs that have been repeatedly pointed out leaves current users frustrated and looking for alternative programs.
Fix the bugs now. You know what they are because your users have been reporting them for years.