Laurie and Dan Castaneda from Long Beach, Calif., walk the pool deck of the Azamara Journey on a Titanic Memorial Cruise. Preparation for their costumes involved several weeks of research, last-minute purchases and even home-sewn clothing from vintage patterns. Richard Drew/AP hide caption

itoggle caption Richard Drew/AP

Surviving officers of the Titanic recalled ship's doctor John Edward Simpson as perfectly calm in the face of death, even giving his pocket flashlight to one of the lifeboat captains. Courtesy of Kate Dornan hide caption

itoggle caption Courtesy of Kate Dornan

The cast and crew of Titanic, as pictured in my 2001-2002 yearbook. I'm standing in the third row back on the right side, in front of the "captain." Courtesy of Dana Farrington hide caption

itoggle caption Courtesy of Dana Farrington

The bow railing of RMS Titanic, illuminated by the Mir 1 submersible. Read more about the wreck in a National Geographic report. Emory Kristof/National Geographic Stock hide caption

itoggle caption Emory Kristof/National Geographic Stock

The ill-fated Titanic rests at Harland and Wolff's shipyard, Belfast, in February 1912. Topical Press Agency/Getty Images hide caption

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James Cameron's 1997 epic Titanic is being rereleased in 3-D. Paramount Pictures/AP hide caption

itoggle caption Paramount Pictures/AP

White Star Line heir J. Bruce Ismay was one of 325 men to survive the sinking of the Titanic.

Hulton Archive/Getty Images hide caption

itoggle caption Hulton Archive/Getty Images

A London newspaper boy sells copies of the Evening News with a story about the sunken ship. Topical Press Agency/Getty Images hide caption

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