This footage is lucky to have been captured as Degas refused to be filmed and the camera man sat in a cafe past which he knew the artist passed every day on a walk and, as the artist was nearly blind, he knew he’d be able to film him unnoticed – the first paparazzi! the woman walking near Degas helped/guided him on the walk.
The film clip is absolutely legitimate. ..Degas walking along the Boulevard de Clichy, from the film Ceux de Chez Nous by Sacha Guitry. C 1914… A still photo from the film is in the book, DEGAS, by: Robert Gordon and Andrew Forge.