I ran across this today. British bio pic (1986) about Caravaggio through his work. Staring Nigel Terry, classical stage actor of Excalibur fame.
A retelling of the life of the celebrated 17th-century painter through his brilliant, nearly blasphemous paintings and his flirtations with the underworld. IMDb
Something that I should see. Admittedly I have not, yet.
Baroque master painter – my post on Caravaggio
In fairness to the film makers:
It is available on Amazon