In the battle after Sam rescues Carly, she touches multiple dirty spots, yet she never gets a single dirt spot on her white shirt.

Even though Edward is in Brazil during the honeymoon scenes, he is not sparkling, which the vampires are supposed to do in sunlight. This is an error per Robert Pattinson (David Letterman show 8 November2011).

In the scene where there is a Military convoy rolling through town on screen from right to left there is an M35A3 truck in the convoy and those vehicles were not built until 1993.

Position of hat changes when Watson wakes up at his wedding.

In First Class, Professor X is made handicapped in 1962 at the end of the movie. In the previous X-men movie, he was walking when he visited the girl (Jean) in the mid 70s with Magneto.

During the chase scene involving Rogers and the Hydra spy that happened after Rogers got his new powers, the windshield of the cab the agent was driving was shot twice. In some shots, especially once Rogers landed on the roof of the cab, the windshield has no holes.

The phone handsets in every shot are Cisco 7940 which are VoIP handsets. This technology was not available in 2002.

The cars in the car park scene are left hand drive (specially the ones involving the main action scenes), but the sequence is set in India, where the cars are right hand drive.

When Jay is pushed in the pool, there are three people in the pool who suddenly disappear as soon as he swims to get out.

Lynn Davies' head position is inconsistent between shots during the Period 5 bar scene while she is talking to Elizabeth Halsey. There is a point where her head is down, and in the next shot immediately after her head is up.