Pifias

When Cleopatra is rolled out of the rug in her first appearance, she is wearing flat sandals. In the next shot, she walks to the table in high heels.

When Mark Antony returns to Egypt shortly after marrying Octavia, he and Cleopatra get into a confrontation where during the argument scene Liz Taylor changes costumes and wigs twice and Richard Burton once all within the same two minute conversation.

When Cleopatra and Antony are quarreling about his marriage to Octavia as well as conflicts with Octavian the location changes instantly in mid-conversation. They start the dispute at the site where her tomb is being constructed and in the next immediate cut it jumps to her personal chamber, all within the same conversation.

When Mark Antony runs to the dead body of Rufio, he's wearing fancy red and gold boots. When he steps away from the body in the close-up, he's wearing some sort of plain black slipper.

When Caesar orders his men to leave him and Cleopatra alone after she disrupts his meeting; he holds her close and her right cheek is almost touching his lips. However, in the next cut, there is now a separation between their heads as they face each other before he kisses her.

When Caesar is saying goodbye to Cleopatra in Alexandria before sailing back to Rome, one of his aides hurries him by warning, "Caesar, I'm afraid the tides will soon be against you." In fact, the Mediterranean Sea has no tides, or, more precisely, its tides are so minimal that they don't affect navigation. No ship sailing from a Mediterranean port would have to worry about catching a tide.

Cleopatra's arrival and procession would not have entered the Roman Forum itself, as portrayed in the movie, since during the Republic, all foreign rulers were prohibited from crossing the Pomerium, the sacred boundary of the city, into Rome proper.

Cicero never attended the Senate during the period of Caesar's dictatorship, nor was he actively involved in the conspiracy to assassinate Caesar.

Caesarion is depicted as being around the age of ten when he leaves Egypt for his own safety. In reality, he was 17.

Ptolemy XIII Theos Philopator and his tutor are "spared" by Caesar. In reality, Ptolemy died during the Battle of Alexandria, drowning as he tried to cross the Nile.

In one point Cleopatra talks to Caesar about Rome's interest in Egyptian corn. Ancient people in that part of the world did not know what corn / maize was, since it was originally cultivated in prehistoric Mesoamerica and spread worldwide only in the 15th and 16th centuries. However, British usage of the word "corn" refers to all cereal grain, including wheat, oats, and maize.

One might think that the elaborate fanfares heard are not possible using simple valveless instruments. The fact is that various military bands, including several British units, use valveless "post horns" for fanfares during ceremonial performances.

Caesar and Antony call Italy "Italy". Italy the country did not exist at that time. The Romans called the region which includes modern Italy "Italia". However, as the movie's audio is in English and not in Latin, the "Italia region" is called "Italy".

The scar from Elizabeth Taylor's tracheotomy, performed during filming, is visible in several shots.

When Caesar leaves for the Senate just prior to his assassination, there appear to be brown leaves on the ground. The event in question took place in March, and leaves blown down by the storm would likely be green.

The sunlight passes across Anothy and his cot much-too quickly to be the actual sun rising.

Caesarian's accent when he is on the toy horse yelling, "the enemy" is substantially different than his accent when Caesar is instructing him on how to be a king and he says, "I pardon you". [This is because filming of Cleopatra's and Caesarian's entrance into Rome was delayed for several months due to lighting problems. The American child actor who played her four-year-old son got taller during the delay. He was replaced by an Italian boy, complete with a thick Italian accent.]

When the sphinx that carries Cleopatra in her entrance to Rome is about to go under the Arch, the shadow of the scaffolding behind the Arch is visible on the sphinx until it goes under it.

When Caesar places the white crown of Upper Egypt on Cleopatra's head, the onlookers kneel. However, she already was wearing the red crown of Lower Egypt (the Nile delta), which surely would be more important to residents of Alexandria.

When Caesar and Antony depart Cleopatra to go to the Senate, Caesar's sedan chair the bearers lift the chair to shoulder height. For some reason, Antony's chair is merely lugged off.

During the thunderstorm on the evening of March 14, 44 B.C., lightning flashes twice, but it's the same lightning flash repeated. (It's also blurry and looks cheap.) Further, the flash doesn't flow; it appears as a complete image. Also, the thunder happens at the same moment the flashes are seen. Finally, the thunderclaps are identical, which, in a way, makes sense as the lightning was too.

An Egyptian laments the loss of the books in the burning library of Alexandria. At this time books did not exist--the library contained scrolls.

The topless dancer seen at the beginning of Cleopatra's parade entering Rome clearly has a tan line that is the result of wearing a modern bikini-style top.

Many of Cleopatra's costumes bear no resemblance to period garb and appear to be quite similar to early 1960s dresses. This is not entirely unexpected, as costume designers for a number of major films of that era introduced clothing lines "inspired" by the film.

For example, seven years after this film, Edith Head did the costuming for the film Aeropuerto (1970), then introduced an exclusive line of apparel based on the her designs for the costumes of the stewardesses.

During Mark Antony's bath, a yellow plastic sponge is floating on the surface of the water.

As Cleopatra enters Rome, tire tracks appear on a dirt road during the big parade.

At the end of Cleopatra's Sphinx travelling forward, the camera's shadow can be seen at the downing left.

After the Titus murder incident, Caesar and Antony discuss strategy for a while then Caesar exits the courtyard to the camera's left and Antony follows him. A few seconds later three slaves enter running from the camera's right side to deal with the dead body. However, no one informed the slaves of the incident therefore they would not have known about what had happened.

The Roman soldiers are depicted with their scabbards on their left side. Unlike other swords, the Roman gladius was short enough to be worn on the right. Even left-handed Roman troops would have worn the scabbard on the right for the sake of uniformity.

When Caesar is instructing Caesarion in how to be a king, the child answers in a thick Italian accent. As he has never been to Italy before, he should speak with an English accent, like Cleopatra. [This is because filming of Cleopatra's and Caesarian's entrance into Rome was delayed for several months due to lighting problems. The American child actor who played her four-year-old son got taller during the delay. He was replaced by an Italian boy, complete with a thick Italian accent.]

Although Cleopatra is supposed to be the incarnation of the Egyptian goddess Isis, everybody except Dame Elizabeth Taylor pronounces it "Isis". Taylor pronounces it "Isis" if the line is not dramatic and "Ises" if it is.

Cleopatra pronounces Theodotos "Theothodos".