Before Robert Downey Jr. became Iron Man, he was known as a bit of a trouble maker. He openly discusses his past with drug addiction and how he made a major comeback after his arrest in the nineties. The movie he claims that started it all was Less Than Zero. He stated that he took drugs and drank alcohol in excess often, but that he never did it on set and would always wait until he was home. However, he claims that this movie kickstarted his use of drugs while working behind the camera, stating that his character was a bit of a loser, so the drug habit was fitting. For almost the next decade, it’s safe to assume that any roles he was in, he was probably portraying under the influence. Fortunately, if anyone is an example of doing a complete 180, it’s Robert Downey Jr.