The Crossing of the Return Threshold in Goodfellas (1990) is Paul Cicero's refusal to take Henry back. He lets him go. This is the loss of the father figure, the loss of the most potent of supernatural aids.
The 2000+ stage Hero's Journey and Transformation through a New World/State is the template upon which the vast majority of successful stories and Hollywood blockbusters are based upon. Learn about this at http://www.clickok.co.uk/index4.html