See secion(s):'Metadata Utility - XML ID Verification' click here.Check the 'Suspect' Queue - After running 'Metadata Utility - XML ID Verification', Metadata Utility will 'flag' any record(s) with missing XML files into the 'Suspect' Queue - 'Events' and create/re-create the needed Metadata Files as needed.
'Reset (Delete) 'Windows Media Center Local Profile Metadata Cache' and Re-Cache (Re-Download) 'Windows Media Center Local Profile Metadata Cache' click here.This is the 'nuclear' option. If all fails and you don't seem to get Windows Media Center to show the Metadata Information (for some and/or all movies in the library), then this is your best option to start fresh and have Metadata Utility re-built/re-create the Metadata Information for all the movies in the Library.