The 2012 film version of Total Recall borrows a lot of elements and plot storylines from the original 1990 movie, but with some differences. The 1990 movie had the setting both on a war-torn Earth and on Mars whereas the 2012 movie setting is solely on Earth in the 2050s which has been devastated by nuclear and chemical warfare which only two places on Earth, the mega city of London, England and the continent of Australia are the two inhabitable places where people can live. Quaid lives in the Australian Free Colony and he commutes to work in London via an planetary shuttle that travels through a tunnel leading across the center of the Earth every day. There is no Richter character chasing Quaid in the 2012 movie as the role of Quaid's relentless pursuer is taken over by Lori, where as in the 1990 movie Lori has a much less role in chasing Quaid. Also of note, in the 2012 film, Lori speaks with a flat, middle-class American accent during the early scenes. Later, when she attempts to kill Quaid and reveals her true alliances, her accent immediately changes to an upper class British accent which is her apparently natural accent that she uses for the duration of the 2012 film. The 2012 version focuses entirely on Quaid's point of view and rarely shows the viewpoints of Lori and the other villains chasing him. For example, Cohaagen does not appear until the final 30 minutes of the 2012 film when he first meets Quaid face to face, whereas he is featured very occasionally throughout the 1990 movie.
Both movies feature a brief appearance by a three-breasted prostitute whom Quaid encounters. In the 1990 version Quaid meets her on Mars later in the film, whereas in the 2012 version, Quaid encounters her quite early before he gets chased. Quaid travels to Mars to meet with Melina in the 1990 film, while in the 2012 film, it is Melina who goes to meet with Quaid first after she rescues him from Lori and her henchmen chasing him. Due to the advances of technology as well as CGI, many of the car chase scenes in the 2012 film use hovercraft cars that can levitate where as the 1990 film the cars are ground-wheeled vehicles. The mutant taxi driver Benny, who betrays Quaid and Melina to the Mars government troops under Cohaagen and Richter in the 1990 film. is absent here. It is a computer memory chip implanted in Quaid's brain that doubles as a tracking device when activated which leads the government troops under Cohaagen and Lori to the rebels hidden base.
The ruse to try to trick Quaid into believing that this whole thing is a dream while he is in a coma and being monitored at the Rekall clinic is featured in both movies, with some differences (The 1990 version had Quaid in the privacy of his hotel room on Mars and being persuaded by Rekall director Dr. Eigenbauer and Lori, while the 2012 version has Quaid in a public plaza square with his friend, Harry, trying to persuade him to kill Melina standing nearby to free himself of his fantasy while a crowd of people and a group of soldiers with their guns pointed at Quaid are featured. In the 1990 version, it is a drop of sweat reeling down the side of Dr. Eigenbauer's head that makes Quaid realize that he might be in reality after all while in the 2012 version it is a teardrop from the frightened Melina's eye that makes Quaid realize the same). In the 1990 film, Quaid uses a mask to disguise himself as a large woman to get past Mars customs, while in the 2012 film, Quaid uses a holographic image to disguise himself as an old man to get past the London customs security. In the 2012, there is a red herring and nod to the 1990 film as there is a old woman standing in front of Quaid who mentions "two weeks" of the time she will be staying in London which is meant to mislead the viewers into thinking that she is Quaid in disguise as well as a nod to the scene in the 1990 film where Quaid mentions "two weeks" as the large woman of how long he will be staying on Mars.