Nic Cage talks about playing “Nick Cage” in The Unbearable Weight Of Massive Talent
No, seriously, Nicolas Cage works all the time because he wants to do it and likes working

Writer/director Tom Gormican’s The Unbearable Weight Of Massive Talent looks like it might be one of the most fun movies anyone has ever made, with Nicolas Cage playing a loosely fictionalized version of himself (named Nick Cage) as he befriends a mysterious rich fan (Pedro Pascal) who turns out to be a violent criminal. Somewhat unsurprisingly, though, the goth icon had to be convinced to take on such a meta role that seems largely based around (lovingly) poking fun at him.
During a fun and far-ranging chat with The Hollywood Reporter, Cage explained that he got a letter from Gormican that explained the pitch, specifically that it came from a “real interest in some of the earlier work” and not that it was trying to mock fake Nick Cage or real Nicolas Cage. He says he was also drawn to a sequence that eventually got cut out of the movie where Nick Cage lives through major moments in his career but done in the style of The Cabinet Of Doctor Caligari, which sounds amazing, but the studio believed it was “too far out for audiences.”