When Topper and his team are on the plane, Harbinger is putting on "blackface". When they hook up to prepare to jump, his face is clean.
When Topper and Michelle are making love in the limo the driver is a black man. The limo driver sets up a small video camera facing the back seat and he has a miniature clapboard as if he were making a movie. However when we see the hands actually clapping the clapboard, they belong to a white person and not the limo driver.
When Saddam points his pistol at Topper and orders him to drop his gun, Topper slowly turns until his gun is almost pointed at Saddam. Yet a moment later when Topper lays the gun down, the butt end is facing Saddam.
Topper gets shot in the arm, and you can see through his arm. When he talks to Ramada, the hole is gone.
In the "dim sum" fighting scene Topper decides against gummy bears to spike his gloved fists. However, when Topper accidentally hits the referee in the face, gummy bears can be seen sticking to the referee's right cheek and nose.
When Topper is consoling Harbinger in the war camp, one of the boxes is labeled "Spinless Jellyfish," a misspelling of the word "Spineless."
When they are rigged to parachute in, their gear is in a free-fall configuration and they are wearing free-fall parachutes, but their chutes have a yellow static line that opens the chute automatically. Free-fall parachutes don't have a yellow static line, they have a rip-cord that the jumper must pull themselves or is automatically deployed at pre-determined altitude by an altimeter the jumper wears on their wrist.
At formal affairs, President Benson is repeatedly announced as, "The President of the United States, Thomas Benson." The Japanese Prime Minister is similarly announced by his name. This is incorrect protocol. Heads of state are announced by their titles only, e. g. "The President and Mrs. Benson", and "The Prime Minister of Japan and Mrs. Soto".
During the presidential groundbreaking ceremony, all presidents but President Ford get hit by Benson's shovel. Despite being uninjured, he also collapses to the ground. This probably is not an error, but a reference to Gerald Ford's history of accidental falls during his presidency, especially as the actor playing him says "Whoops!" immediately before falling over.
A few seconds after Michelle strikes a match on her leg, the sandpaper taped to her leg is visible.
After Topper shoots a chicken into the body of an enemy, it lays an egg like a hen, but crows like a rooster.
Just after Rabinowitz meets Topper, a shot of Rabinowitz is flipped. "US ARMY" is backwards on the right-hand side of his uniform.
At the library ground breaking ceremony. After Benson hits President Carter with the shovel, the actor doesn't realize he's still on camera and casually walks out of frame.
When Topper jumps off the balcony after Saddam swings the sword at him, the stunt man's legs can be seen when Charlie gets up.
During a scene towards the end of the film, a gag takes place where a taxi humorously delivers the rescue party to the helicopter extraction point in the middle of a war zone just as the mission for extraction is aborted. In the background, a crew member's shadow can be seen in a manner where their right arm is raised high and suddenly lowered signaling the taxi to drive into frame at the moment required once the order to abort is given.