When Sarah arrives in Crete, there is a sign on an airport's window that says "Akrodekti 1" (in Greek alphabet). The (misspelled) word means terminal in Greek, but is never used for airport terminals. In fact, it is almost never used at all.
When the Poseidon's assassins meet Kishida, he is seen speaking, but the video is not synchronized with the audio. In fact, it seems that he is saying different things than what is heard.
When A&W shoots Henry Kishida, the bullet hole appears in his head before the bullet hits him.
Michael and his crew escaped prison in Yemen and reached the coast of, supposedly, Red Sea. No way they could reach Greece (and pass Suez Channel) in 12 hours with that boat or any known boat.