‘The Dink’ is bland — but cheerful

The Dink , a movie about a former tennis wiz reduced to playing pickleball, is a cheerfully bland comedy about a game that has swept the country. Jake Johnson plays Dustin Boyd, a loser who works as a junior tennis instructor at a country club run by his father ( Ed Harris ). A tough old bird, Dad regards his son as a failure. An ill-fated match with Andy Roddick ended teenage Dustin's promising…