There are a lot of things that make the movies we love so great, but that doesn’t mean they don’t have their fair share of mistakes, whether it’s an actor flubbing a line or the shadow of a camera hovering over a scene. As perfection is unattainable, even the most careful filmmakers can miss something during production. So buckle up because we’ve compiled a list of 10 movie mistakes you may not have noticed — but once you do, you’ll never forget.