Just like everyone else, filmmakers can make mistakes, too. Often those oversights are hard to notice on the first watch, so it might be a good idea for directors to go through their work with a fine-tooth comb a couple more times.

To get you started, Bright Side put together a list of 20 most glaring mistakes from famous movies.

The Hobbit and The Lord of the Rings

In ’The Hobbit,’ Legolas has dreamy blue eyes, but in the ’Lord of the Rings’ trilogy they were almost black.

In ’The Lord of the Rings: The Return of the King’ one of the staircases suddenly disappears along with Frodo.

Harry Potter

This is no sorcery: the wires that the candles hang from are plainly visible.

You can see the camera man in this scene of ’Harry Potter and the Chamber of Secrets.’

In ’Harry Potter and the Order of the Phoenix,’ Harry’s T-shirt gets changed in his sleep from a rounded-neck one to one with buttons.

Harry has always been told that he had his mother’s green eyes. So why do we see her having brown eyes in ’Harry Potter and the Deathly Hallows’?

Spider-Man

In this scene, Mary Jane slips on some spilled juice, but in the next frame the spill is gone. Self-cleaning floors?

Star Trek

Captain Robau is seen wearing a Starfleet badge but, as soon as he sits in his chair, the badge magically disappears.

Twilight

The camera’s reflection is visible in the car window.

You can clearly see a wire passing through Bella’s jeans.

Sleepy Hollow

Here you can see Christopher Walker’s real teeth behind the prosthetic ones.

Pulp Fiction

Who doesn’t remember this iconic scene. But have you ever noticed that the bullet holes are already in place before the shots are even fired?

Men in Black II

Agent K’s safety harness can be clearly seen here.

Pirates of the Caribbean

A crew member got caught in the frame.

In the ’Pirates of the Caribbean: The Curse of the Black Pearl,’ Captain Hector Barbossa’s teeth go from presentable to super-gross in a matter of minutes.

Gladiator

In the scene of an epic battle, one of the chariots gets turned over, and you can see a gas cylinder strapped in the back of it.

Avengers

Looks like Iron Man’s suit can heal minor wounds.

…And so can Captain America’s.

Star Wars

One of the stormtroopers (far right) is too high, so he hits his head on the door. Look closely. It’s impossible to unsee.

Hunger Games

Katniss might be doing something wrong here.

Pretty Woman

In this episode, Julia Roberts is eating a croissant, which in the next frame suddenly turns into a pancake.