Google play does this when watching certain movies and shows. Not sure if it's added manually or does intelligent recognition. However, it's certainly useful -

Google play does this when watching certain movies and shows. Not sure if it's added manually or does intelligent recognition. However, it's certainly useful - so I could see generalizing that capability for other movies / plays?? <br/> Granted, the movies and shows on Play have at least a context to do the pattern matching with - a cast list greatly reduces the possible matches.