Corrected entry: When Perseus is watching the suitor being burned and is talking to Thallo about the riddle that each suitor must answer, Thallo states "and those who fail do not tell what they were asked". This suggests that each riddle is kept secret from all except the suitor. When the queen asks Perseus the riddle, however, everyone in the kingdom is gathered in the temple and listening, so the riddle is not kept a secret at all. Anyone who was there would know what the riddle was.
Corrected entry: When Pegasus is being tamed and Perseus leaps onto his back and then cuts the rope around Pegasus's neck, the wide sweep of his sword, at that angle, would not have been able to cut the loop around its neck (at least not without causing a bad wound).
Corrected entry: Throughout the movie, the sea monster Perseus kills is referred to as the "Kraken." The movie is based on Greek myth, but a "kraken" is a monster from Norse myth.
Corrected entry: in the scene near the end where Andromeda exits her bath and in to awaiting towels,she gets very dry in no time, from the front there is not a drop of water anywhere.
Corrected entry: When Ammon examines Perseus' new sword, he comments that it is neither bronze nor iron. Iron was not known to the Greeks until the Dorian invasion, which occurred at about 1150 BC - long after the period in which Perseus was supposed to have lived.
Corrected entry: The title of this movie is actually a misnomer. Neither Medusa nor the Kraken are Titans. Medusa was a Gorgon and the Kraken was put in place of the historical sea monster, Cetus (who wasn't a Titan, either). Just as well, none of the other mythological creatures/characters are Titans, either.