All the popular characters are back in "Night at the Museum: Secret of the Tomb." The trailer also shows some new exciting characters for the fans. The release date of the movie has been set for Dec 19, 2014 in the U.S and UK.

This is the third movie from the franchise. The main theme in the movies is about the objects in the museum coming to life at night due to the magic of the Golden Tablet. The plot of the upcoming movie revolves around the waning power of the Golden Tablet. Ben Stiller, as the security guard Larry, travels to London to find out what's wrong.

The actors who are reprising their roles in the upcoming movie include Ben Stiller as Larry Daley, Robin Williams as Teddy Roosevelt, Owen Wilson as Jedediah, Rami Malek as Ahkmenrah, Ricky Gervais as Dr. McPhee, Patrick Gallagher as Attila the Hun and Mizuo Peck as Sacajawea.

Three characters who played the roles of the main villains in the first "Night at the Museum" will also be coming back to reprise their roles. Cecil, played by Dick Van Dyke and Gus, played by Mickey Rooney and Reginald, played by Bill Cobbs were the night guards before Larry and had attempted to steal the Golden Tablet in the first movie.

A new character in "Night at the Museum: Secret of the Tomb" is Sir Lancelot, played by Dan Stevens. The movie will also feature a new skeletal dinosaur. The Tyrannosaurus Rex skeleton is replaced by the skeleton of Triceratops dinosaur. The new dinosaur may not be playing fetch with Larry the way the Tyrannosaurs Rex skeleton used to.

Rebel Wilson is seen playing the role of a security guard in London. The main focus however may be on Ben Kingsley who plays the role of the Pharaoh and asks Larry to kiss his "staff" in the trailer. He may have the explanation as to why the Golden Tablet is losing its power.

Fans are also excited to see the importance given to a Neanderthal who looks a little like Larry. "Night at the Museum: Secret of the Tomb" will also feature the popular monkey, which has been seen in all the previous movies. The monkey is seen urinating on Jedediah and Augustus in the trailer. Click here to watch the trailer.

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