In the 44 years since his death in 1980, Alfred Hitchcock has become a cinematic cottage industry, with almost as many movies about the director as movies made by him. (More if you count the entire oeuvre of Brian De Palma.) The worst is probably Sacha Gervasi’s “Hitchcock” (2012), with a gruesomely miscast Anthony Hopkins in the lead.
The best is a toss-up between Kent Jones’s “Hitchcock/Truffaut” documentary (2015), about the meeting of those two filmmakers and the classic 1966 book that came out of it, and Alexandre O. Philippe’s “78/52” (2017), which puts the famous shower scene of “Psycho” under a microscope..