Watch Now

From $2.99 (SD) on Amazon Video

A man awakens from a coma, only to discover that someone has taken on his identity and that no one, (not even his wife), believes him. With the help of a young woman, he sets out to prove who he is.



(screenplay), (screenplay) | 1 more credit »
2,422 ( 210)
3 nominations. See more awards »



Learn more

People who liked this also liked... 

Non-Stop (2014)
Action | Mystery | Thriller
    1 2 3 4 5 6 7 8 9 10 7/10 X  

An air marshal springs into action during a transatlantic flight after receiving a series of text messages that put his fellow passengers at risk unless the airline transfers $150 million into an off-shore account.

Director: Jaume Collet-Serra
Stars: Liam Neeson, Julianne Moore, Scoot McNairy
Taken 2 (2012)
Action | Crime | Thriller
    1 2 3 4 5 6 7 8 9 10 6.3/10 X  

In Istanbul, retired CIA operative Bryan Mills and his wife are taken hostage by the father of a kidnapper Mills killed while rescuing his daughter.

Director: Olivier Megaton
Stars: Liam Neeson, Famke Janssen, Maggie Grace
Taken I (2008)
Action | Thriller
    1 2 3 4 5 6 7 8 9 10 7.8/10 X  

A retired CIA agent travels across Europe and relies on his old skills to save his estranged daughter, who has been kidnapped while on a trip to Paris.

Director: Pierre Morel
Stars: Liam Neeson, Maggie Grace, Famke Janssen
Taken 3 (2014)
Action | Thriller
    1 2 3 4 5 6 7 8 9 10 6/10 X  

Ex-government operative Bryan Mills is accused of a ruthless murder he never committed or witnessed. As he is tracked and pursued, Mills brings out his particular set of skills to find the true killer and clear his name.

Director: Olivier Megaton
Stars: Liam Neeson, Forest Whitaker, Maggie Grace
The Grey (2011)
Action | Adventure | Drama
    1 2 3 4 5 6 7 8 9 10 6.8/10 X  

After their plane crashes in Alaska, six oil workers are led by a skilled huntsman to survival, but a pack of merciless wolves haunts their every step.

Director: Joe Carnahan
Stars: Liam Neeson, Dermot Mulroney, Frank Grillo
Run All Night (2015)
Action | Crime | Drama
    1 2 3 4 5 6 7 8 9 10 6.6/10 X  

Mobster and hit man Jimmy Conlon has one night to figure out where his loyalties lie: with his estranged son, Mike, whose life is in danger, or his longtime best friend, mob boss Shawn Maguire, who wants Mike to pay for the death of his own son.

Director: Jaume Collet-Serra
Stars: Liam Neeson, Ed Harris, Joel Kinnaman
Crime | Drama | Mystery
    1 2 3 4 5 6 7 8 9 10 6.5/10 X  

Private investigator Matthew Scudder is hired by a drug kingpin to find out who kidnapped and murdered his wife.

Director: Scott Frank
Stars: Liam Neeson, Dan Stevens, David Harbour
Action | Crime | Thriller
    1 2 3 4 5 6 7 8 9 10 6.8/10 X  

Frank is hired to "transport" packages for unknown clients and has made a very good living doing so. But when asked to move a package that begins moving, complications arise.

Directors: Louis Leterrier, Corey Yuen
Stars: Jason Statham, Qi Shu, Matt Schulze
Shooter I (2007)
Action | Crime | Drama
    1 2 3 4 5 6 7 8 9 10 7.2/10 X  

A marksman living in exile is coaxed back into action after learning of a plot to kill the President. Ultimately double-crossed and framed for the attempt, he goes on the run to find the real killer and the reason he was set up.

Director: Antoine Fuqua
Stars: Mark Wahlberg, Michael Peña, Rhona Mitra
Action | Crime | Thriller
    1 2 3 4 5 6 7 8 9 10 7/10 X  

After being betrayed and left for dead in Italy, Charlie Croker and his team plan an elaborate gold heist against their former ally.

Director: F. Gary Gray
Stars: Donald Sutherland, Mark Wahlberg, Edward Norton
Crime | Drama | Romance
    1 2 3 4 5 6 7 8 9 10 7.4/10 X  

A married couple's life is turned upside down when the wife is accused of a murder.

Director: Paul Haggis
Stars: Russell Crowe, Elizabeth Banks, Liam Neeson
Action | Adventure | Thriller
    1 2 3 4 5 6 7 8 9 10 6.5/10 X  

A CIA operative hires a team of mercenaries to eliminate a Latin dictator and a renegade CIA agent.

Director: Sylvester Stallone
Stars: Sylvester Stallone, Jason Statham, Jet Li


Cast overview, first billed only:
Prince Shada
Dr. Farge
Nurse Gretchen
Helen Wiebensohn ...
Laurel Bressler


A biochemist and his dishy wife arrive in Berlin for a conference at which a scientist and his controversial Arab funder will announce breakthrough research. While his wife checks into the hotel, he grabs a cab to return to the airport for his briefcase, left at the curb. En route, an auto accident puts him in a coma, from which he awakes four days later without identification and with gaps in his memory. He goes to the hotel: his wife refuses to recognize him and another man has claimed his identity. With help from a nurse, the cab driver, a retired Stasi agent, and an academic friend, he tries to unravel what's going on. Is the answer in the briefcase? Written by <>

Plot Summary | Plot Synopsis


Take back your life.

Motion Picture Rating (MPAA)

Rated PG-13 for some intense sequences of violence and action, and brief sexual content | See all certifications »

Parents Guide:




| | |


| | |

Release Date:

18 February 2011 (USA)  »

Also Known As:

Unknown  »

Filming Locations:


Box Office


$30,000,000 (estimated)

Opening Weekend:

$25,453,015 (USA) (18 February 2011)


$61,094,903 (USA) (18 March 2011)

Company Credits

Show detailed on  »

Technical Specs


Sound Mix:

| |


Aspect Ratio:

2.35 : 1
See  »

Did You Know?


Olivier Schneider, the actor that played Smith (the assassin with the glasses), was also a stunt coordinator for this film. He was also the stunt coordinator for Taken (2008), which also starred Liam Neeson. See more »


When Dr. Harris and Gina are observing the fake passports of Mr. and Mrs. Carmichael, the handwriting signature of "Mrs. Carmichael" says "Carmicheal". See more »


[first lines]
Pilot's Voice: Ladies and gentlemen, we're beginning our descent into Berlin Tegel, where local time is 8:30 AM, and the temperature is a cool minus four degrees.
Dr. Martin Harris: Morning.
Elizabeth Harris: Did you sleep?
Dr. Martin Harris: No. I'll sleep at the hotel.
See more »

Crazy Credits

The opening credits are shown as clouds being viewed from an airplane blow past... not so crazy, except that it actually makes one of the credits unreadable. See more »


Referenced in In Depth: Ben Shapiro (2013) See more »


Streets of Istanbul
Performed by Kevin W. Buchholz (as Buchholz) & Jessie Shapiro (as Shapiro)
Written by Kevin W. Buchholz (ASCAP) & Jessie Shapiro (ASCAP)
Courtesy of Acumen Audio & Cutting Edge Music
See more »

Frequently Asked Questions

See more (Spoiler Alert!) »

User Reviews

Great Thriller with a Surprising Plot Point
12 June 2011 | by (Rio de Janeiro, Brazil) – See all my reviews

The researcher Dr. Martin Harris (Liam Neeson) and his wife Elizabeth Harris (January Jones) arrive in the airport of Berlin to participate in the Biotechnology Global Summit. When they take a cab to the Hotel Adlen in the Central Berlin, the taxi driver forgets his briefcase in the kart. While Liz is in the check-in, Martin discovers that his briefcase is missing and he immediately takes a cab back to the airport. During the route, there is an accident and the taxi fall off the bridge into the river, but the driver Gina (Diane Kruger) rescues Martin and saves him.

Martin awakes in the hospital after four days in coma and his Dr. Farge (Karl Markovics) advises him to stay in the hospital since he could be deluded due to his trauma on the head. However, Martin forces the doctor to discharge him and he goes to the hotel. Without any document, Martin is hold by the security of the hotel; but he sees Liz in the hall and the chief of security agrees to go with him to meet his wife. However, she tells that she does not know him; further, she presents her husband, Dr. Martin Harris, to them. Martin goes to the police and tells that the other man is an impersonator. But Martin can not prove who he is since he has no documents and it is Thanksgiving in North America and he can not locate his old friend Dr. Rodney Cole (Frank Langella). Without any credibility, Martin is forced to return to the hospital; but when he is attacked by a stranger the kills his Nurse Gretchen Erfurt (Eva Löbau), Martin realizes that he is involved in a huge conspiracy and nobody believes on him.

"Unknown" is another great thriller with Liam Neeson with a surprising plot point. The intriguing story seems to have flaws, but when the mystery is solved, everything has an explanation. Everything works in the thriller: performances, cinematography, music score and specially the twist.

The fifty-nine year-old Liam Neeson is impressively youthful and fits perfectly to the role of a man that loses part of his recollections, and the gorgeous Diane Kruger is excellent as usual. Despite their difference of ages, they are are convincing as a couple. My vote is eight.

Title (Brazil): "Desconhecido" ("Unknown")

56 of 78 people found this review helpful.  Was this review helpful to you?

Message Boards

Recent Posts
Why were there shower sex flashbacks? anthonymarshall
Things We Learned from Unknown merv1225
Why did they have two Dr Martin Harrises? SueBee55
Okay, I'm confused. I need answers. Pure_Narcotic
Diane or January? SiaSnoCap
Frantic rip off! overfloden
Discuss Unknown (2011) on the IMDb message boards »

Contribute to This Page

Create a character page for: