Continuity: In the first few scenes of the movie, General Ross has the gold striping on his shoulder epaulet rank on the inside of his shoulder, which is the wrong position. Later in the movie, the rank is switched back to proper military regulation.
Factual errors: As Dr. Betty Ross emerges from the side of the crashed helicopter on the roof top, she is seen grabbing onto the barrel of the Gattling Gun. This would be impossible as the temperature of the barrels would to be too hot to touch after being just fired prior to the helicopter crashing.
Continuity: The chase in Brazil moves from night to day and back to night again.
Continuity: During the scene where Bruce is talking with the man who works at the Pizza place, Bruce's hair in the front alters in between shots, in one shot, his hair is against his forehead, in the next shot, it's combed to the side, in the next shot, it's against his forehead again.
Revealing mistakes: When Gen. Thaddeus 'Thunderbolt' Ross opens the CRYO tank for the blood sample, the vial contains a liquid. If it was in liquid nitrogen it would be a solid, at approximately -150C, that would need to be thawed out.
Factual errors: UH-1 Huey helicopter seen early in the film has an "N" registration number. Only US civilian aircraft have "N" registration numbers, US Military aircraft do not.
Factual errors: When the box of drinks containing the contaminated bottle is packaged, it has 'Brasil / U.S.A' printed on the side to show its destination. However, while Brasil is depicted with its Portuguese spelling, the acronym for the United States of America in Portuguese is 'E.U.A.' for Estados Unidos da América, not 'U.S.A.'