On the third scene, Perceptor has the Decepticon symbol on his chest.
During the introduction scene, when the archaeologists uncover the Decepticon ship, in one shot, the collar of the female archaeologist's shirt is not colored in, so there is a huge "hole" in her neck.
At the first scene, the archaeologists are looking for Mayan artifacts in South America. However, the Mayan people lived in Mexico and Central America, not in South America.