London After Midnight (1927) is a silent mystery film with horror overtones. The film stars Lon Chaney, Marceline Day, Conrad Nagel, Henry B. Walthall, and Polly Moran and was directed by Tod Browning. It is also a lost film, quite possibly the most famous and eagerly-sought of all lost films. The last known print of the film was stored by MGM in Vault #7. In 1967, an electrical fire broke out in the vault that destroyed countless films from the silent era, including this last known print.
In 2002, Turner Classic Movies commissioned famed restoration producer Rick Schmidlin (Greed, Touch of Evil) to produce a 45 min. reconstruction of the film, using still photographs. This was well received by horror fans and Schmidlin received the Rondo Award for his efforts.
For more information: http://en.wikipedia.org/wiki/London_After_Midnight_%28film%29