I can’t remember that last time I wanted to grab the reigns of a movie as badly as I did while watching Sharp Stick, Lena Dunham’s return to directing self-written material since her acclaimed HBO series Girls.  With this latest endeavour, Dunham is heading in a good direction with interesting and peculiar characters and then, two-thirds through the movie, Sharp Stick takes a hard turn into another character arc that seems like an unfair trade-off…