| Release Date | 01 November 2006 |
| Budget | $4,000,000 |
| US Box Office | $64,000,000 |
| Tagline | Trust no one. Fear everyone. |
| Genre | Crime, Drama, Mystery, Thriller |
| Country | USA |
| Filming Locations | Desert Center, California, USA |
| Language | English |
| Sound Mix | Dolby Digital |
| Color | Color |
| Film Type | Feature |
| Film Class | Ensemble Film, Psychological Thriller |
| Mood | Mindbenders |
| Themes | Race Against Time, Hostage Situations, Amnesia |
| Tones | Gritty, Ominous, Claustrophobic, Confrontational, Tense, Paranoid |
| Tags | Amnesia, Hostage, Warehouse |
Unknown (Colombian title: Mentes en Blanco) is a 2006 Crime-Thriller film directed by Colombian filmmaker Simon Brand and stars James Caviezel, Greg Kinnear, Bridget Moynahan, Joe Pantoliano and Barry Pepper about a group of men kidnapped and locked in a factory. Piecing together information around them, they realize that some were kidnapped and some were the kidnappers. They decide they must work together to figure out how to get away before the gang that captured them returns.