Revealing mistake: In the first major battle between the 300 Spartans and the Persians, Leonidas is slaughtering the Persians and the speed of the scene goes from slow motion to fast motion, you see very realistic CGI blood. When the blood hits the the ground it suddenly disappears. This happens many times during this long and awesome scene.
Revealing mistake: When Bella calls Rosalie, you can briefly see the cell phone screen before she puts it to her ear. The lock screen is still visible, showing she didn't dial anything. (00:55:45)
Revealing mistake: After the trained chimp is shot and is crawling into the cage, they show a shot of an ape turning around. You don't even have to look hard to see it but there's a two inch strip all the way down his face with no makeup. Clear as day. (01:41:30)
Revealing mistake: While Miss Hannigan is singing "Little Girls", she sees one of her foster girls as a lamp on a table. As the camera and scene continue down the hall, a foot can be seen in the background as the girl jumps off the table to be replaced with a real lamp.
Revealing mistake: When Noah and Allie meet outside the movie theatre and later dance in the intersection of the streets, the viewer can see their breath. It is very cold outside and Noah is wearing a heavy jacket. Summer in South Carolina is oppressively hot, even at night. (00:17:00)
Revealing mistake: In the scene where they have just had sex, Meg goes to get out of the bed and is supposed to be naked, but when she puts on the bathrobe you can see she is wearing some type of slip or nylon panties.
Revealing mistake: Michael Douglas pulls up to the curb to park his car. When he opens his door, it hits a fire hydrant, which moves! This is very easy to spot. (01:08:50)
Revealing mistake: When Costello's men drive off, after throwing Queenan off the top of the building, the state troopers are firing at the van. One back window is shot out, then in the next shot of the van the other window is shot out and then the same one is shot again so the one window is shot out twice in the same scene.
Revealing mistake: When Eli and Klitz are being chased by Mule, Eli and Klitz go over the railing and land on the table. After that when Mule lands on the table you can see the table break a split second before he lands on it.
Revealing mistake: When the Telmaries are building their war machines, there is a shot of a two-man saw being used to cut timber. There is no sawdust falling from either the saw blade or the wood itself. (00:46:30)
Revealing mistake: When Arthur is giving his speech before the last battle, in the background are three radio towers. You never know Arthur might need a radio to find out tomorrow's weather.
Revealing mistake: When the little boy steals the wig from the dead Rug Daniels' head Rug blinks and twitches his lip. (00:16:45)
Revealing mistake: In the scene at the motel where Chigurh kills three men, he goes to sit on the bed where he removes his socks. In the background one of the 'dead' men opens his eyes and looks around.
Revealing mistake: The films takes place in and around NYC. The nitpick here is that in many scenes in the film Torontos CN Tower and The Sky Dome are visible in the background.
Revealing mistake: In the part where Amelie gave back the photo album to the bloke in the fun park, when he finally gets to his bike, you can see people in the background staring intently at the filming. (01:12:40)
Revealing mistake: In the final scene as Doc tell Billy good-bye if you look up to the top right hand corner of the screen you can clearly see a jet trail in the blue sky. Certainly not possible in those days. (01:42:20)
Revealing mistake: In the jail scene, Gene Hackman is reading from a book. When he turns the book too far towards the camera you catch a glimpse of his lines on brighter white paper attached inside the book.
Revealing mistake: Just before the Roman soldiers pressed Simon of Cyrene to help Jesus carry the cross, Jesus has fallen and we see that the bruised and swollen-shut eye is now his left. The shot changes and when it comes back to Jesus his right eye is swollen shut again. The film must have been flipped.
Revealing mistake: The professor has a blowout, but all four tires on the car are fine. (02:04:30)
Revealing mistake: When Robin crashes through the stained glass window to save Marian and fight the sheriff, the panes of glass flutter in the breeze, revealing it to be fake glass.