For information, Screenscraper is a "young" DB ;) (a little more than 1 year old and already one of the most if it isn't the most "complete" DB ;) ).
All data aren't referenced, and some mistake may pass throught the moderator validation (we are human after all ^^)
If you found "wrong" information, or a "missing" information, don't hesitate to propose or comment the error directly on the website.
Information are from the community... If every one participate, we can have a nice DB ;)