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Abre los ojos
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  • Alejandro Amenábar imagined the script after having horrible nightmares while ill with the flu.

  • When César (Eduardo Noriega) goes to Sofia (Penélope Cruz)'s apartment and starts to rip down her photos on the wall, there is a picture of "The Sandman," a popular comic book that deals with the world of dreams, created by Neil Gaiman.

  • Penélope Cruz also stars in Vanilla Sky (2001), Cameron Crowe's remake of this film, playing the same character, Sofia.

  • César's apartment uses same set used by the character of David in Pedro Almodóvar's movie Carne trémula (1997), which also starred Penélope Cruz.

  • Director Cameo: [Alejandro Amenábar] with other two people in the bathroom of the disco, when César goes there. He is the last one that gets out.

  • The film's title translates to "open your eyes," which is a repeated motif.

  • The song playing at the nightclub when César first arrives is "Rising Son" by Massive Attack, in which the phrase "dream on" is frequently repeated.

  • Tom Cruise said that he was on his mobile phone trying to buy the remake rights during the end credits the first time he saw the film.


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