With regard to Martin Scorcese’s new film “The Wolf of Wall Street”, portraying ancien règime levels of decadence and debauchery in 1990s New York finance, based on the memoir of stockbroker Jordan Belfort, fellow broker and ex-convict Danny Porush commented
The book … is a distant relative of the truth, and the film is a distant relative of the book.
It’s a strange thing to say. I’m guessing he means to say that the film is even farther from the truth than the book is, but it’s perfectly consistent with a claim that the film (unlike the book) is the truth, or that it is closely related to the truth. By analogy, the famous rabbi Adin Steinsaltz is a distant relative of mine. And my brother is a distant relative of Adin Steinsaltz. But I am not distantly related to my brother.