Plot: Thirty years after making a celebrated student short about a four-year-old child of free spirits living in San Francisco’s Haight-Ashbury district at the height of the 1960s, Ralph Arlyck attempts the kind of revelation only documentary film can provide. In Following Sean, he goes in search of the impish, barefoot kid who delighted or horrified audiences, reflecting the hopes and fears of a turbulent, utopian era