Ya one and two were pretty accurate if your looking for that as well as goodfellas.
BTW, there is a youtube channel by Frank Cullotta where he used to answer questions.
That Chicago outfit was nasty. Dont know how it is these days.
Sammy “The Bull” Gravano has his own YouTube Channel, it’s basically him telling stories mostly about things he was involved in, including murders.....
There is a YouTube channel “Mob Vlog” a fellow named Adam Flowers runs. He has some interviews with Cullota and another figure named Red Wemette, who was a mob associate turned informant. Pretty interesting Chicago mob stories.