Revealing mistake: When Kalidor lifts Prince Tarn into the air with one arm, the cables attached to Tarn's back are visible.
Revealing mistake: When the High Priestess gets hit by Ikol's Shuriken star the guiding wire for the projectile is visible.
Revealing mistake: Sonja has a modern vaccine scar on her left shoulder.
Visible crew/equipment: When Varna is shot by the arrow whilst on the areal slide you can see the arrows guiding wire.
Revealing mistake: In the scene where Sonja's sister is escaping from the temple she is shot with an arrow whilst on an aerial slide. Her body hangs limply and is met at the end of the slide by Kalidor. However, the limp body is a stunt *man* in drag.
Continuity mistake: How come Red Sonja asks the little prince and servant for directions and she takes the quickest route, yet the same prince and servant get ahead of her?
Continuity mistake: In the scene where Red Sonja is fighting some guy in front of her Master, you see it from her point of view. When she points the sword at the guy after she disarmed him, it's clearly to see that the arms belong to a man, as they are large and hairy. In the next shot, you see it from another angle and you can see her arms are placed in another position and its easy to see that it wasn't her arms in the shot before.
Continuity mistake: Near the end, when Red Sonja and Queen Gedren are sword fighting, the scar on Gedren's right cheek is missing.
Revealing mistake: During the fight at the shrine, a woman throws a warrior on top of a pile of rocks, and the rocks squeeze down, revealing they're made of foam. When the warrior falls on the floor, the rocks reinflate back to their previous shape.
Continuity mistake: When Sonja and the Queen fight in the candles' room, the ones on the right are thick, and the Queen cuts several of them with her sword. When the Prince enters, not only are the candles fixed and standing up, but they are all thin.
Revealing mistake: The giant statue by the entrance of the fighting arena just casts a shadow of the legs, which cuts off under the knee. More noticeable in the close-up shots, revealing the rest of the body was a composite shot.
Continuity mistake: When Sonja is fighting against the queen, she holds her sword with both hands. Then suddenly with her left hand. Right after, the wizard makes her left arm bleed and she covers the wound with her right hand, but a shot later she doesn't. All this takes place from shot to shot in a matter of frames.
Continuity mistake: After the main tower of the Queen's castle explodes, the scene changes to the group of four trying to escape. Back to an outside shot of the castle, and now the tower is rebuilt and back in place.
Revealing mistake: When Kalidor, Sonja, and Falcon climb the wall, their hairs and clothes fall towards the rocks, revealing the camera trick and thus that they're crawling on the floor.
Continuity mistake: The water dragon has two different designs: one for where its mouth opens and closes, and one where it barely moves. Note the shape of the ears, nostrils, and eyes.
Continuity mistake: When Sonja stabs her knife into the dragon's head, the blade bends, revealing it's made of rubber. A shot later, the blade is back to stiff.
Revealing mistake: When Sonja pops out the water dragon's eyes, one can see they're not eyeballs, but a cheap, flat prop with a socket behind to plug the eye onto the animatronic.
Revealing mistake: When Varna is sliding down the rope and gets shot in the back with an arrow, the safety pad under her clothes protrudes noticeably.
Continuity mistake: When Sonja, Falkon, and Tarn arrive at the lava river, it flows from left to right. A shot later, the lava flows in the opposite direction.
Deliberate mistake: When Kalidor beheads a warrior and when Sonja beheads the wizard, both heads don't fall sideways as they should, but instead fly upwards, revealing they were tossed by someone offscreen - which looks more impressive, indeed.
