The world was introduced to Jake Gyllenhaal as angsty teenager Donnie Darko (apologies to those who knew him from "Bubble Boy") in writer-director Richard Kelly's monumentally trippy exploration of ...

Hollywood is a sparkling world where often fame is hereditary, sometimes it is subtle and low key, and sometimes it is, well, a big deal.

From George Lucas and Greta Gerwig to Alex Cox, here are five directors who completely ruined their potential despite starting off as great filmmakers.