"On the Boardwalk: the Venice Video." Country People Productions. $19.95. Jeff Jackson's vivid 45-minute documentary gives a sense of how much fun it can be to stroll along the Venice (California) boardwalk on a warm afternoon. People-watching is the primary pastime. With its street entertainers and characters, Venice resembles one of those hippie-era "happenings." In scattered interviews, visitors and boardwalk regulars gush about the area--whose dark side Jackson touches on just briefly. Information: (213) 396-9242.