Deliberate mistake: When Luc Crash is attacking the guards at the beginning, once or twice one of his blows is repeated twice from different angles, and it does not appear to be for effect.
Deliberate mistake: You can tell the miner uniforms and prisoner uniforms are exactly the same wardrobe, the prisoner uniforms are simply marked "Prisoner" to make them seem different.
Deliberate mistake: When Lola frees Luc Crash in the beginning of the movie, he hits a guard, making him flip forward and fly through the air, even though this is impossible and it has nothing to do with magic or any other elements used in the story.
Deliberate mistake: At the end of the movie, the sun rises way to fast to be realistic. All we see is a sped up shot, and suddenly, it looks to have been up for at least an hour, all the while Jimmy and Luc fight in "real time." It makes no sense.
Deliberate mistake: When Pestilence kicks the barrel of flammable material, the impact of his shoe makes the barrel spark and shoot liquid all around. But the size of the sparks and smoke from his shoe hitting the barrel is ludicrous, and would in reality, ignite the liquid, which is already pouring out.