No usable archival footage exists. The entire film was reconstructed in AI, with Cliff recreated as a consistent character across the full runtime — the way an actor plays a real person in a biopic, not stock imagery. Directed end to end: shot design, a desaturated cool grade held until the final act, Cliff's signature asymmetric shuffling gait carried consistently shot to shot, and a cold open built on rain and footsteps before any face is shown.