Fran Lebowitz is a polarizing figure in the documentary “Pretend It’s a City.” Her self-centered storytelling and interactions with Spike Lee reveal a sense of entitlement and appropriation. The film evokes discomfort, akin to hearing stolen jokes. Lebowitz’s self-absorption parallels a comedian’s narcissism. The documentary portrays her as a self-indulgent, larger-than-life character, prompting mixed reactions.View…