The movie was filmed in 1980. The attempted assassination of President Ronald Reagan
by John Hinckley
occurred during the filming of the big transformation sequence, which was shot over the course of four days. See more
There's a chemical imbalance. An occult malignancy in his system.
What kind of medicine are practicing here, Doctor?
What we have is a pituitary gland that has gone crazy, out of control. It's causing much too rapid growth. No matter what nourishment we give him, it just isn't enough. Now, I... I thought it might be genetic, inherited. But the metabolic tests that we did on both of you show that you're normal as pie. So unless there's something we don't know, unless there's something left out ...