A factory worker, Douglas Quaid, begins to suspect that he is a spy after visiting Rekall - a company that provides its clients with implanted fake memories of a life they would like to have led - goes wrong and he finds himself on the run.
When Quaid/Hauser is fighting the synthetic on top of the six-way elevator car and the synthetic loses an arm, this is a nod to the original film where Michael Ironside's character suffered in a similar way.
While Melina is hanging from the elevator Hauser asks her for her gun but she still has it in her holster when entering the elevator.
During the elevator scene, when Quaid and Melina are escaping, they jump down one level. When Lori enters the elevator area, they are on the same level again.
Colin Farrell as Douglas Quaid / Agent Carl Hauser
Kate Beckinsale as Agent Lori
Jessica Biel as Melina
Bryan Cranston as Chancellor Vilos Cohaagen
Bokeem Woodbine as Agent Harry
Bill Nighy as Matthias
John Cho as McClane
Will Yun Lee as Marek
Dylan Smith (credited as Dylan Scott Smith) as Agent Hammond