Ms. Pedecaris' companion, who is slain in the opening scene, is referred to as "Joseph". He is later referred to as Sir Joshua Smith.
At the beginning of the movie when Candace Bergen is kidnapped, her son is chased and falls in a pool of water. Moments later he is chased into the house and his clothes are completely dry.
The Raisouli and his followers pray while the muezzin is calling. In fact, the actual praying is done after the muezzin finishes - it's his job to remind the faithful to go pray. This is a common mistake in Hollywood productions, possibly done for dramatic purposes.
When Raisuli tells his story one of his men refers to him as "Siyyid," which means he is a descendant of 'Alí. Yet Raisuli does not wear Siyyidi green, until he is in his own house.
The performing their ablutions (washing before prayer) the "muslims' only wash their hands, with one also washing his face. Proper ablutions also include the ears.
The film portrays Secretary of State John Hay as the voice of restraint against President Theodore Roosevelt. In fact, it was Hay, and not Roosevelt, who coined and issued the ultimatum, "Pedicaris alive or Raisuli dead."
On the beach during the rescue and after Raisuli's first rifle shot, there is a spot of blood on the camera lens.
When Roosevelt has his hand on a globe, Turkey and Libya are visible, but neither name would appear on a globe in 1904. Also, Greece is spelled "Grece".
The chess set has European (Christian) chess pieces, instead of Islamic chess pieces which a Muslim prince would be expected to use.
During the sparring scene,Theodore Roosevelt and his opponent are wearing 1970s era Everlast boxing gloves. The film takes place in 1904, and Everlast was founded in 1910.
In 1905, the US Marine Corps used a blue battle flag (as seen on the poster). The flag was not changed to red until the 1920s.
The actor playing the Marine Captain makes the common mistake of pronouncing "cavalry" as "calvary." Cavalry is a mobile army unit. Calvary is a hill near Jerusalem.