Plot synopsis: In 1992, Anderson was knee-deep at night in devising what would eventually become “Boogie Nights,” but during the day he worked as a production assistant on “Sworn To Vengeance,” a telefilm thriller starring Robert Conrad. From this gig sprang a brief, fascinating clip of the future director giving viewers a tour of the different departments on-set, from transpo to catering and make-up/wardrobe.