Eliza

Visible crew/equipment: The very first shot of a Harpy attacking the blind man is not up to the high standard of the rest of Harryhausen's work in this film - you can easily see two wires suspending the model as it "flies" down. These are better hidden in later shots.

Eliza

Continuity mistake: When Talos comes after the Argonauts, he reaches his hand through an archway in the rocks. After he withdraws his hand (in Harryhausen stop motion), notice one of the Argonauts wriggling and struggling against the rocks as if still trying to get away - the actor doesn't know what the end shot will be like and is still hamming long after the hand is gone.

Eliza