Reservoir Dogs
Reservoir Dogs fell victim to the continuity error. This is a super small error, but still interesting to point out! During this fight scene, the characters handcuff Marvin Nash with his hands behind his back. In the very next frame, Nash his handcuffs with his arms in front! It's difficult to keep everything perfect on a movie set, especially in between all of these takes. This was just a small slip-up.
Gone With the Wind
Gone With the Wind is famously set during the Civil War. For a quick history refresher, the Civil War took place in the 1860s. Back in the 1860s, everything in a household was powered by gas, not electricity. For a split second in one scene, a background character can be seen carrying a lamp. This lamp has an electrical cord! This wouldn't have been possible back then and was definitely an accident.