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Socialite novelist Tatiana Boncompagni (Gilding Lily) might write about frothy stuff like clothes and parties, but don't think she's sentimental when it comes to family: She's suing her sister Natasha over a forthcoming HarperCollins novel, Hedge Fund Wives, which Natasha apparently claimed co-authorship of following her "input" during the writing process. Tatiana has filed a copyright infringement suit—she says her sister secretly copied parts of the novel during family visits—and is asking for monetary damages as well as a court order declaring her sole author.

Hedge Fund Wives was written between August '07 and September '08, which begs the question: Did Boncompagni hastily rewrite her book to turn what was undoubtedly a fun tale of pampered excess into a tragedy involving curtailed purchasing power and plummeting net worth? Otherwise the question of authorship might be the least of her problems.

'Hedge Fund Wives' Author Sues Sister Over Authorship [Bloomberg]