When accessing library over Home Share the Movie metadata is wrong

Music and TV Shows works fine and displays everything as it should, all information and artwork (cover art) present and correct. My Movies however are not. They all display the same movie art work (Who Framed Roger Rabbit) and only some of the metadata information. Can anyone tell me why this is and how to fix it?

Is there a reason that only the Movie information would be wrong while the rest of it interprets the information fine? Is the metadata stored different on movie files?

Any help would be greatly appreciated.

Hard Disk connected to a Raspberry PI attached to the router acting as a DAAP server for use with latest version of iTunes