'Reinventing Perspective' depicts the Making of Christopher Alan Broadstone's 2020 horror feature HUMAN NO MORE. This documentary is a perfect fit for the film, which uses a complex structure to weave between past & present in order to explore the conflict between a detective (Det. Nemo) and a serial killer (Mr. Blight), the history between them and the full repercussions of their conflict. It's a "philosophical horror", with words often functioning as weapons, more interested in the horror of existence than providing shocks. Although the film boasts more than one devastating set piece. With 'Reinventing Perspective', Broadstone juggles likewise between past & present, using his bewildering array of skills, including layering and split screen, to ensure a seamless yet entertaining flow of exposition for a film which combines newly-shot footage with three award-winning short films from 15-20 years earlier. What struck me is the way this documentary-feature depicts all aspects of the production, from sourcing props and the building & decorating of sets, to on-set dramas and the connection forged between performers, and finally to the effects that are created in post production. Highlights, for me, include the difference of approaches and acting styles between stars Tony Simmons, evoking an old school pro level of calm and precision; to the more restless and unpredictable Gabriel Sigal, whose nervous energy may have caused additional work, but whose freshness and spontaneity allowed the Editor (also Broadstone) multiple and fascinating creative choices of emphasis. Sigal, coming from theatre rather than film, was an asset, bringing a new energy to every scene and take. I chuckled at the humour of Simmons mispronouncing the word "longevity," adding as many as two extra syllables. As well as the difficulty of soundproofing a set when a plane goes by - suffering nerves between takes, Siegel asks what kind of plane it is, and it's amusing to see co-star Rick Wildridge feeding him information of a given flight and aeroplane, the prosaic details calming the talented performer's restless creative mind. Additionally, it was remarkable to see the range of special effects that were created, from green screen to digital compositing - the "cutting out" of a moving protagonist from one background and placing onto another. As well as manipulating exterior backgrounds to achieve a precise look. As a whole, 'Reinventing Perspective' can be enjoyed as a companion piece to fans of "HNM", but also is a piece all of its own, and can likely be enjoyed by those wishing to dabble into micro -or-low budget film production. The film's co-producer Matthew Sanderson provides a couple of articulate "talking heads scenes," one in the back of a car and another over steak and eggs in a restaurant, providing an insightful summary of first-time filmmaking that provides a neat bookend to the film.