It would be nice if there were a way to distinguish between various watch types to differentiate between films, television, and internet based streaming media — perhaps with a data field and a toggle along with three appropriate icons for each of these rather than the single watch icon now (a generic “play” button).
Further, most of the current meta data fields are fairly solid for the most often used fields, but I often find that it would be nice to have fields for Season # and Episode # for television shows.
The last “big” piece that would be nice to have is a quickly usable ratings field of sorts so one could provide a rating 1-5, 1-10, or 1-100 rating field? Maybe it could be a simple numerical data field that calculates/displays a rough 5 star-based scale? h-review markup could also come into play here as well, though it would be nice to capture the raw data even if there is no UI display built for it.