By: Addison Wylie Last September, TIFF featured a Canadian indie named Wet Bum.  It sold itself to audiences as an innocent coming-of-age tale about a meek high schooler who finds guidance in her relationships with the elderly.  A lot of movie goers ate it up, and found Wet Bum to be endearing. While it’s momentarily touching, I found Lindsay MacKay’s indie had too many precious quirks.  Those developed the film into something far less original…