We included the image below in The Rudolph Valentino Case Files, and Renato secured the right to use it in the book from the French Cinemateque image collection. Surprisingly they had few images of Valentino in their files, and most were familiar ones. This was the most exceptional.
(Below) Valentino pays a visit to the set of Rene Clair's movie, The Crazy Ray (Paris Qui Dort). You can watch the film here:
https://www.berfrois.com/2013/03/the-crazy-ray/
and with a better version here:
https://www.youtube.com/watch?v=vGwP3mYmE_c
Renato comments that considering the equipment they had then, some of the shots are incredibly well done. He also says the only reason Rene Clair and the cast were in Paris then, was because they were shooting the film. It was August when everyone leaves the city and heads to the seashore. They also stayed in Paris and filmed in August because in the mornings the streets were empty.