Lockout (also known as MS One: Maximum Security[6][7]) is a 2012 English-language French science fiction action film directed by James Mather and Stephen Saint Leger from a script written by Mather, Saint Leger, and Luc Besson (with Besson serving also as executive producer through EuropaCorp).

It stars Guy Pearce, Maggie Grace, Vincent Regan, Joe Gilgun, Lennie James and Peter Stormare.

The plot follows Snow (Pearce), a man framed for a crime he did not commit, who is offered his freedom in exchange for rescuing the President's daughter Emilie (Grace) from the orbital prison MS One, which has been taken over by its inmates, led by Alex (Regan) and his psychotic brother Hydell (Gilgun).

In 2079, CIA operative Snow is arrested for murdering Colonel Frank Armstrong, who had uncovered evidence of a mole selling secrets about the United States space program.

Secret Service Director Scott Langral, on advice from the President, has Snow convicted of murder and espionage.

Meanwhile, the President's daughter Emilie arrives on MS One to investigate claims that keeping prisoners in stasis can cause them to develop mental instability.

Langral initially attempts to trick Alex into releasing Emilie, but Hydell disagrees, forcing Snow to infiltrate MS One.

Snow then changes Emilie's hair & clothing to conceal her gender, allowing them to walk through the prison population without being noticed.

Realizing that he has been sent there to die, he sends Emilie on her way, but she allows the pod to launch without her because she believes the remaining hostages will be killed.

Emilie later realizes that Mace's incoherent rambling was actually a code revealing the location of Frank's briefcase.

Examining the lighter, Snow finds a memory card containing the real secret information hidden inside.

[20] Rotten Tomatoes gave it a 38% approval rating based on reviews from 123 critics, with an average score of 5 out of 10, and the site's consensus reads: "Guy Pearce does the best he can with what he's given, but Lockout is ultimately too derivative and shallow to build on the many sci-fi thrillers it borrows from.

[22] Lisa Schwarzbaum of Entertainment Weekly gave the film a C grade, writing: "Lockout floats like space junk in the final frontier.

The French court ruled in his favour[1] and awarded him damages of €20,000, with the Escape from New York screenwriter Nick Castle getting €10,000, and €50,000 given to StudioCanal.