Originally known as Bond 23, the title was initially leaked on the web after fans found newly registered domain names, and then finally confirmed on 3 November 2011. 

Production period: 7 months.

Locations

Pinewood Studios:

A total of 31 different sets were constructed for the movie on 8 different soundstages at Pinewood.

• Shanghai Skyscraper (?? Stage)
• London Underground crash (007 Stage) For this amazing stunt sequence, the crew built two full-size train carriages, each weighing seven tons. The sequence was too dangerous to allow people to stay on the stage for the crash scene, so ten remotely operated cameras were placed around the stage to ensure every angle was covered.
• Underground Mi6 HQ (007 Stage) 
• Golden Dragon Casino (Exterior: Paddock Lot / Paddock Tank; Interior: D Stage)
• Underwater Sequences (Underwater Stage)
• Exterior of the Dead City (North Lot)
• Explosion at Mi6 HQ (Backlot) A series of fireworks were used on the real building in central London, then a ⅓ scale model was built on the backlot at Pinewood Studios rigged with 28 explosives by Chris Corbould, the special and miniature effects supervisor.  

A Stage, B Stage, C Stage, D Stage, F Stage, G Stage, L Stage and S Stage were used in addition to those mentioned above. 

Hasima Island (off the coast of Japan) 

• Silva's Island

Glencoe, Scotland

• Final denouement

Trailer:

Featurette: London Locations used in Skyfall

Featurette: Sam Mendes

Featurette: Naomie Harris