<P> Night at the Museum: Secret of the Tomb is a 2014 American comedy adventure film directed by Shawn Levy and written by David Guion and Michael Handelman . It is the sequel to the 2006 film Night at the Museum and the 2009 film Night at the Museum: Battle of the Smithsonian . The film stars Ben Stiller, Robin Williams, Owen Wilson, Dan Stevens and Ben Kingsley . In Secret of the Tomb, security guard Larry Daley must travel to London to return the tablet of Ahkmenrah, an Egyptian artifact which causes the exhibits to come to life, before the magic disappears . </P> <P> Principal photography of Secret of the Tomb took place from January to May 2014 in London, England and British Columbia, Canada . The film premiered on December 11, 2014, at New York City's Ziegfeld Theater and was released in the United States on December 19, 2014 . Secret of the Tomb grossed over $363 million at the box office . This film was dedicated to the memory of Robin Williams, who died four months before the film's release, and fellow Night at the Museum actor Mickey Rooney, who died before principal photography was finished . </P> <P> In 1938 Egypt, a team of archaeologists discover the tomb of pharaoh Ahkmenrah, including a young Cecil Fredericks, finding the magical Tablet of Ahkmenrah . The locals warn the group that removing the tablet will end its magic . In present - day New York City, Larry Daley remains the night guard of the American Museum of Natural History . He, Theodore Roosevelt, Sacagawea, Attila the Hun, Jedediah, Octavius and Dexter the capuchin monkey help re-open the Hayden Planetarium . A new wax Neanderthal resembling Larry named Laaa is introduced, identifying Larry as his father . Ahkmenrah shows Larry that the tablet is corroding, which later causes the exhibits to act erratically, causing mayhem at the planetarium's reopening . Afterwards, Larry catches his son Nick throwing a house party, who plans on taking a gap year to sort out his life . </P> <P> Larry reunites with Cecil, now in retirement, who realises the end of the tablet's magic will cause the exhibits to become lifeless . Cecil explains Ahkmenrah's parents, Merenkahre and Shepseheret, may be able to restore the tablet's power, but are located in the British Museum . Larry convinces the museum's curator, Dr. McPhee, to let him ship Ahkmenrah to London to restore the tablet, convinced that McPhee knows its secrets . Larry and Nick travel to the British Museum, bypassing the night guard Tilly . To Larry's surprise, Roosevelt, Sacagawea, Attila, Jed, Octavius, Dexter, and Laaa have come as well . Laaa is left to stand guard while the others search the museum, the tablet bringing its own exhibits to life . </P>

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