Modern blockbuster movies have budgets that can easily reach hundreds of millions of dollars. Pirates of the Caribbean: On Stranger Tides, for example, holds the record with a budget of $378.5 million. But despite throwing all that money at their movies, you'd be surprised how easy it is for mistakes to slip through the dozens of layers of editing a movie goes though before it ever hits the silver screen.

Here are a few examples of mistakes that made it into some of the most iconic movies in history. Yes, you'll want to watch them all again after this.