This conversation has been merged. Please reference the main conversation: Lightroom: Read and write video metadata into video or sidecar
See images below for the difference in metadata panels from 7D to 5D Mark III. Makes it impossible to use metadata filtering on videos!
Canon 5D Mk III Metadata in Lightroom:
Canon 7D Metadata in Lightroom:
Using Jeffrey Friedl's excellent "Metadata Viewer" Plugin, it is possible to see that all the metadata is available in the 5D .MOV file, so I would expect it to be pulled into Lightroom as well.