Really interesting article on the history of Goodfellas, but one of the wildest bits: the author of the book it's based on, Nick Pileggi, was married to Nora Ephron, who in turn wrote My Blue Heaven, which is also based on Henry Hill and also came out in 1990!
https://www.bbc.com/culture/article/20250905-how-goodfellas-reinvented-the-gangster-film