L ace up your gumshoes! Hard-boiled detectives are back on the scene, fedoras pulled low, cigarettes sparked up. Nicolas Cage is leading the charge in Prime Video’s Spider-Noir, a shadowy spin on Spider-Man that drops in May – available to stream in black-and-white for the diehards. It promises all the hard-edged hallmarks of a good film noir: fast-paced, slangy dialogue, femme fatales, and a heavy-drinking detective at its centre – albeit one with web shooters rather than a snub-nose revolver. He’s not the only PI in the frame this year. Apple TV is adapting Philip Kerr’s Berlin Noir series into a series starring Colin Firth, while a new NBC pilot promises Jake Johnson as a “cynical and heartbroken” sleuth. And Brad Bird’s animated noir, Ray Gunn, is finally hitting Netflix after almost 30 years in development. So what’s prompted this return to darkness? Perhaps it’s a sign of the times.…