Continuity: When he sees Meg in the river of death, he reaches down and touches it. Then, when he jumps in, he makes a dive of at least 50 feet.

Deliberate "mistake": In Thebes, Phil beats up the guy and he gets a black eye, but seconds later the black eye is gone.

Continuity: As the Fates cut their first victim's string of life, between shots they move further away from the nearby window.

Continuity: When Phil falls off Pegasus, he hits a pillar and gets knocked out. A few minutes later, after recovering, his position is different and the pillar is gone.

Continuity: During Hades' meeting with the Fates, he walks to a table to explain his plan. Between shots the things on the table change.

Continuity: When Hercules opens the case, all that falls out are two pots, two bowling pins, a helmet, a sword, and two pairs of armor. A purple cape, two shields, many other pots, a sandal, a trophy, and a white ball with a blue stripe are among many of the additional items that appear out of thin air in the very next shot.

Continuity: When the gods are walking down Mt. Olympus in chains, Hephaestus is in front of Aphrodite. But after Hercules cuts the chains with his sword and frees the gods, Hermes is in front of Aphrodite, and Hephaestus is nowhere to be seen.

Continuity: In the shot of the gods after Hades makes his joke about moussaka, Dionyssus is close to Aphrodite and Athena's owl is on her left hand. Then as Hades asks "Is this an audience or a mosaic?", Aphrodite is further from Dionyssus, and Athena's owl is on her right hand.

Continuity: Hercules skips a rock towards a statue in the fountain. There's no way that after doing that the statue would lose both its arms, let alone with no other damage done to it.

Continuity: When Hades says "Here I am kind of river guardian-less" you can see a chess piece of a centaur on the board near to a lot of other pieces. The when Meg flicks the centaur off the board, the other pieces are gone.

Continuity: When Hades forms a chessboard to show Meg his plan, the chess-pieces on it change between shots.

Continuity: After the frisbee is taken away from Hercule's, he sadly sits down on the edge of the fountain. Between shots the rocks and things on the ground distinctively change.

Continuity: Panic pulls open the tab on a soda can, but the can opens on the wrong side from the tab.

Factual error: When Young Hercules makes the pillars fall in a Domino effect, they go both ways. However, if this were to happen, they would stop the domino effect when they reach the entrance to the market, which doesn't have pillars. The pillars are not in a circle, so there's no way they can both stop at the top of the ring, where the pot seller is. The only way for this to work is if Hercules started the Domino effect at the entrance of the market, with pillars directly across from each other, which he doesn't.