In the movie "The Negotiator," the informant is revealed to be Chris Sabian, played by Samuel L. Jackson. He is a skilled hostage negotiator who is brought in to handle the situation when his colleague, Detective Lt. Danny O'Brien (played by Kevin Spacey), is accused of corruption and murder. The film explores themes of trust and betrayal, as Sabian works to uncover the truth while negotiating with O'Brien, who is trying to clear his name amidst a tense hostage crisis.

At the end of "The Negotiator," Detective Chris Sabian, played by Samuel L. Jackson, successfully negotiates the release of hostages held by fellow officer and framed corrupt cop, Lt. Danny Roman, played by Kevin Spacey. After a tense standoff, Roman reveals the truth about the corruption within the police department. The situation resolves with Roman's innocence being established, and he is exonerated. The film concludes with Sabian and Roman acknowledging each other's courage and integrity, suggesting a newfound respect between them.

"The Negotiator" (1998) is a gripping thriller directed by F. Gary Gray, featuring Samuel L. Jackson as a top hostage negotiator framed for murder and Kevin Spacey as the negotiator who must handle the situation. The film is well-paced, with strong performances and suspenseful twists. It tackles themes of trust, manipulation, and morality. If you enjoy action-packed dramas with intricate plots and character depth, it's definitely worth watching. However, it may not appeal to those who prefer lighter fare or less intense storytelling.

"The Negotiator," released in 1998 and directed by F. Gary Gray, is not based on a true story. The film follows Chris Sabian, a police negotiator played by Samuel L. Jackson, who is taken hostage during a negotiation gone wrong. While it incorporates elements of real-life negotiation tactics and law enforcement procedures, the plot and characters are fictional. The film is a work of drama and suspense, designed to explore themes of trust, deception, and the complexities of negotiation.