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Film 941: Cloud Atlas

Trivia:  In 2005, while on the London set of V for Vendetta, Natalie Portman gave a copy of the original novel to Lana Wachowski, who became deeply interested in it. A year later, both Wachowski siblings wrote a first draft of the screenplay. Tom Tykwer, a friend of the Wachowskis, was invited to co-author several subsequent drafts with them in the following two years, constantly keeping in mind observations by the book's author himself, David Mitchell, while looking for international investors. In all those years, Portman was promised the role of Sonmi-451, but had to turn down the role at the last minute after becoming pregnant in 2010. However, she is given a special thanks in the closing credits.

Andy Wachowski and Lana Wachowski directed the 1849, 2144 and 2321 segments of the film. Tom Tykwer directed the 1936, 1973 and 2012 segments.

All cast members have several roles in the final film, spanning different times, races and even sexes. This was achieved through prosthetics, wardrobe and tight production times to switch actors between units. For instance, Halle Berry described the experience of filming as a Jewish woman in the 1930s under the direction of Tom Tykwer one day, then switching to an old tribal woman under the helm of the Wachowski siblings, and then again as a environmentalist in the 1970s, all in the same week.

One of the few films in history that has three directors working together as an original team who equally share directing credit.

Number 451 (Luisa Rey's apartment and Somni-451) comes from a classic science fiction novel by Ray Bradbury, "Fahrenheit 451". It denotes a temperature needed to burn books.

With a budget of over $100,000,000, Cloud Atlas is one of the most expensive independent films to date.