I just bought iDentify on the advice of others here and it does a great job except that the Genre tag always seems to be left blank for some reason. I am using the latest version of iDentify 1 from the App Store.
Well I just bought and started using the app, and it has failed on every movie I have tried so far, but that is only perhaps 3 or 4. I just edit the genre when it gets into iTunes. I bought identity to simplify my life by automatically importing the films into iTunes; it would be nice if iDentity would get the genre right too.Is iDentify doing this with every film, or just a majority? I've noticed with the free version of the application that it has trouble fetching the genre for about 80% of the content I throw at it, so I'm guessing this problem isn't exclusive to your version of the app.
You can always manually insert genres via iTunes, or even iDentify. In iDentify, highlight all films of the same genre and edit the tags in a batch, only editing the genre field when you do this. The same can be done with the current version of iTunes.