On Maurice Ashley's website, it mentions: "GM Ashley (2007) signed a deal with HBO to make a movie about his Harlem team's victory at the National Junior High School Championships." From his website, I sent an email enquiring about its status but never did receive a reply.
Does anyone know what became of this??
There's nothing on it at www.imdb.com (the Maurice Ashley listed there was born in 1939 and isn't the GM) and I didn't see any obvious way to look it up at www.hbo.com either. A quick search using Google's search engine didn't show anything either to answer your question. Accordingly, the only evidence of any deal with HBO is his website's unverified allegation.