Joseph Campbell's Hero's Journey is but the latest incarnation (and modern name) of the story structure pattern that is representative of successful and effective stories.
This structural pattern has been known and utilised before Joseph Campbell's analysis (and is therefore not simply a Hollywood construct): Shakespeare used this pattern; stories before Joseph Campbell's time used this pattern (Casablanca, 1942; Red River, 1948).
There are more than 188 stages of the Hero's Journey (Monomyth) that you need to know about...

Full details on the main web page