A bit long-winded, but undoubtedly a very good movie.
'The King of Comedy' has a sturdy Robert De Niro lead performance, as well as solid support from Jerry Lewis and Sandra Bernhard. I enjoyed seeing the split from what actually happens and how De Niro's Rupert Pupkin views things via his dreams; especially with how merged they become by the end.
Absolutely zero surprise to now learn that Todd Phillips and Scott Silver used this and 'Taxi Driver' as inspiration when writing 'Joker'. Quite cool though!