In the scene at Denderah where Poirot and the others are entering the temple and the custodian is looking over the parapet, on the stones is carved a graffiti by Charles Irby and James Mangles, two Royal navy captains who were traveling in Egypt after the Napoleonic War. They helped Giovanni Battista Belzoni clear the entrance to the temple of Abu Simbel in 1817. This is shown in Egypt (2005).
Features the character of romance novelist Salome Otterbourne from the original novel. Salome is a thinly disguised version of the real-life novelist Elinor Glyn (1864 - 1943).
Elliott Gould was asked to play Andrew Pennington. He would soon after go on to play Rufus Van Aldin in "Poirot: Mystery of the Blue Train" instead.
The boat used was the S S Sudan. This is the same boat that Agatha Christie was on in 1933. Rebuilt at some point in the 90s. It is also the boat that the Ustinov version used as a model for their S S Karnak.