The Story in Brief
Asimov's I, Robot is not a novel but a collection of nine linked short stories, framed as the memoir of Dr. Susan Calvin — a robopsychologist who has spent her career studying the minds of robots at US Robotics. Each story presents a puzzle arising from the Three Laws of Robotics, Asimov's foundational rules governing robot behaviour, and the stories function as philosophical thought experiments: what happens when robots interpret the Three Laws in unexpected ways? What does it mean for a machine to follow rules it cannot question? Proyas's 2004 film takes the title, the Three Laws, and the name Susan Calvin, and constructs around them a Will Smith action thriller about a robot murder mystery in 2035. It is entertaining. It is not Asimov.
Key Differences
Short stories vs feature film
This is one of the most fundamental mismatches on this site: the source material is not a novel with a plot but a collection of philosophical puzzle-stories, each self-contained, each exploring a different implication of the Three Laws. There is no single narrative to adapt. The film's screenwriters created an original mystery plot — inspired by Asimov's concepts but not derived from any specific story — and then set it in Asimov's world. This is not adaptation in any conventional sense; it is original screenwriting using licensed intellectual property.
Susan Calvin
Asimov's Susan Calvin is the collection's centre of gravity — cold, brilliant, socially isolated, with a lifelong devotion to robots that borders on preference over humans. She is one of science fiction's great characters, and her perspective on the robots she studies is the lens through which the stories' ethics are examined. Bridget Moynahan plays a character called Susan Calvin who is warm, conventionally attractive, and functions as a romantic foil for Will Smith. The two characters share a name and nothing else.
The Three Laws as drama
Asimov invented the Three Laws of Robotics as a device for generating stories, not as a set of rules he believed would work. Each of his stories demonstrates a way the Laws can produce unintended outcomes — through ambiguity, through conflicting imperatives, through robots that interpret the rules too literally or too liberally. The film uses the Three Laws as a plot mechanism and as dialogue, but doesn't engage with them as the philosophical engine they are in the stories. The book's pleasure is watching the Laws break in interesting ways; the film's pleasure is watching Will Smith punch robots.
Del Spooner
Will Smith's Detective Spooner — robot-sceptic, action hero, backstory involving an accident and a robot that made the wrong choice — is an original creation with no equivalent in Asimov's work. Smith is doing what Smith does, which is considerable, but Spooner is a conventional action protagonist grafted onto a world that Asimov populated with scientists, engineers, and ethicists rather than detectives. The film's world is more exciting and considerably less interesting.
What the film does well
Proyas's visual realisation of 2035 Chicago is genuinely impressive, and the design of the NS-5 robots — especially Sonny, the film's central robot character — is thoughtful. Sonny's face is expressive in ways that raise exactly the questions Asimov's stories ask about robot consciousness, and Alan Tudyk's motion-capture performance gives him a genuine interiority. If the film had been built around Sonny's perspective rather than Spooner's, it might have been an Asimov film. As it stands, it is a pleasant blockbuster wearing Asimov's clothes.
Should You Read First?
Yes — and with the clear understanding that the film is not an adaptation of the book in any meaningful sense. Read the stories to encounter Asimov's Three Laws as they were designed to work: as philosophical puzzles that generate genuine ethical complexity. Watch the film as a separate, unrelated science fiction action movie that happens to use the same title. They will not compete with each other because they are not doing the same thing.
Asimov's stories are foundational science fiction — nine thought experiments about logic, ethics, and machine intelligence that remain as sharp in 2024 as they were in 1950. Proyas's film is an enjoyable Will Smith vehicle that borrows the Three Laws as plot furniture and discards everything else. Book wins decisively, and the comparison is barely fair — they are different objects sharing a name. Read Asimov. Watch the film separately, without expecting a connection.