The original screenplay by Brian Helgeland centers on an eccentric taxi driver (Mel Gibson) who believes many world events are triggered by government conspiracies, and the U.S. Justice Department attorney (Julia Roberts) who becomes involved in his life. Jerry Fletcher (Mel Gibson), an obsessive–compulsive New York City taxi driver, visits his friend Alice Sutton (Julia Roberts), who works for the U.S. Attorney, at the Justice Department. She is trying to solve her father's murder. Jerry tells her that NASA is trying to kill the President using a secret weapon on the Space Shuttle that can trigger earthquakes. Jerry identifies some men on the street as CIA, follows them into a building, and is captured by them. He wakes up in a mental hospital bound to a wheelchair. A doctor (Patrick Stewart) tapes his eyes open, injects him with LSD, and interrogates him using torture. As the LSD kicks in Jerry remembers many previous sessions, which he sees as terrifying cartoons. In a fit of pani.. …