Think of Michael Apted’s 7-Up series springing not from class-conscious Britain but from Haight-Ashbury. Four-year-old Sean was a street-smart, pot-smoking child of original hippies, descended from idealistic commies and roaming the Psychedelic Sixties more kinetically than filmmaker Ralph Arlyck’s skateboard-propelled camera. Thirty years later, Sean’s journey to adulthood and Arlyck’s personal yet confrontational style merge into an intimate perspective on romanticized counterculture and the real threads of family that stitch people together.  RR