Diana finds a crumpled up piece of paper hidden in a bed knob and unfolds it. But when a close-up of the paper is shown, it has very neat folding lines and no creases at all.
During Diana's fight with Mei Ling two close ups of Lin Wan show him in front of the blue truck even though he is not in front of it in the wide shots.
The block broken with a karate chop has an obvious seam before the blow is struck.
Washington D.C. and Beijing has a twelve-hour time difference yet both are in broad daylight during Professor Chapman's live broadcast.
While panning across the car of the Chinese team at the airport several crew members, camera and lights be seen in the reflection.
During the beginning of Diana's fight with Mei Ling there are two close ups of Mei where cast/crew can be seen sitting under the shade of a tree in the distance.
Professor Chapman mentions "copyrights" that made others billions of dollars. As a scientist he undoubtedly means patents.