Watch The Rocky Horror Phenomenon Full Movie Free Online 123Movies. What is the secret behind the success of "Rocky Horror"? Is it the music? The actors? The comedy? It's certainly not the Special Effects. "Rocky Horror" has been around for more than 40 years, and still continues to be successful in the movie theaters as well as on stage. This documentary is highlighting the history of "Rocky Horror", which started off as a two-page script written in crayons, and ended up with two movies, tons of merchandise, millions of fans and world touring shows, grossing more than $500 million in revenue.