The Ark of the Covenant is shown without the poles to carry it. "The poles shall remain in the rings of the ark; they shall not be removed from it".-Exodus 25:15
The temple was never destroyed by lightning.
There were no steps from the temple's outer court to its inner court.
Adonijah was slain or killed early in Solomon's reign, not years later in a scuffle with his brother.
Even if it was hit by lightning a carved stone idol would not burn in flames.
During the climatic battle, in one shot of soldiers charging uphill, the spear points wiggle, revealing that they're rubber.
When Solomon carries Abishag's body in his arms, she blinks as he shields her face with his hand.
The Israelites' victory depends on blinding the Egyptians with the Sun reflected in their shields, as the chariots charge with the sun behind them. Pharaoh says that the Israelites must defend themselves facing the sun. However, the Egyptians attack with long shadows stretching to their right, indicating the sun is to their left, not behind them. Further, the shadows also stretch to the Israelites' right, which means they are facing the same direction as their attackers, not confronting them.
During the first battle scene, two Egyptian charioteers who travel right to left across the screen before toppling over to the side are obviously dummies.
The Star of David appears on the shields of Solomon's army, and on articles of clothing worn by Solomon and members of his court. However, the Star of David first appeared in Jewish literature in the 12th century A.D., and became a Jewish symbol in the 17th century.
In the opening scene, Adonijah and his men hide behind ruins made from bricks and mortar in the Roman style.
The fabrics, tailoring and design of the Queen of Sheba's costumes are (obviously) not of the period of the story.
Sheba first appears on screen feeding a macaw. They are native to Brazil, not Egypt.
Several characters refer to God as "Jehovah," the Latin name for God. "Yahweh" is the Hebrew name.
No idea why they thought giving Gina Lollobrigita 'Vulcan' style eyebrows, but it makes her look extremely silly, not exotic.