Clash of the Titans (2010)

Continuity: In the beginning as Spyros and his family are landing their boat, Spyros sees soldiers of Argos demolishing the statue of Zeus. In the aerial shots the fishing boat is in full sail. Just as the statue hits the water, the sails are drawn.

Continuity: After Perseus saves Princess Andromeda and the two are washed up on a beach, her arms are still cuffed to long ropes. As she stands to her feet, they vanish from her arms instantaneously.

Plot hole: When Andromeda and Perseus wake up on the beach, Andromeda tells Perseus that Argos needs a new leader/king. The problem with this is there is nothing onscreen to show that she even knew her father the King had died. She was hanging by her arms facing the Kraken and she couldn't turn around. By the time her father died, she was already falling into the sea, so again, she shouldn't even know her father has died.

Bubo the owl from the original Clash of the Titans makes a brief appearance when the soldiers of Argos are putting together their supplies and arms for the trip to meet the witches. Perseus picks up a staff out of a chest of assorted weapons with a mechanical owl atop of it and asks the Captain "whats this?" the Captain replies harshly "Put it back!"