A new book is being sold on Amazon called 'Classic Series: Once Upon a Time in America' by Chris Wade.
https://www.amazon.co.uk/Classic-Film-Once-Upon-America/dp/0244335532/ref=sr_1_14?s=books&ie=UTF8&qid=1507370310&sr=1-14&keywords=once+upon+a+time+in+americaIt was published just last month, September 2017. It's 98 pages long. The summary says that the author did cast and crew interviews. It's a self-published work, which is usually not a good sign. I also noticed that the author has been incredibly prolific in the past few years, producing dozens of books on music and films. According to his website, he published 18 books in 2017 and 12 in 2016!
I haven't read it. Has anyone here? I will order it and read when I get a chance..