The ultimate goal for anybody putting work into a movie, no matter how big or small the role or capacity, should be to create the best final product possible. It's about passion, pride, and bringing something special to potentially millions of people.
However, if you were to scrutinise just about any film throughout history, chances are you would find at least a handful of mistakes in every single one of them. Mistakes are an undeniable part of life, and though moviemakers may be at the very top of their game, they are still human, and certainly not perfect.
While some errors are barely noticeable - invisible to the naked eye if they can even be seen at all - there are others that you don't have to look very hard to find. In fact, you couldn't miss them even if you tried, they are right there for all to see.
Whether it's a piece of behind-the-scenes technology that slips on screen to take viewers out of the moment, continuity errors that really should have been noticed during production, or even a simple spelling error, these mistakes are all glaring.
10. A Very Visible Green Screen - Hot Fuzz
When Simon Pegg and Nick Frost came together again to work with Edgar Wright after the success of Shaun of the Dead, they offered up something completely different. Hot Fuzz swapped out zombies for policemen, and Pegg's pathetic Shaun for the absolute badass that was Sergeant Angel.
The big action set piece towards the end of the film was an off-the-wall car chase through the countryside, with Angel and Frost's Danny tracking down Simon Skinner (Timothy Dalton) and Inspector Butterman (Jim Broadbent). It was adrenaline-pumping with quick camera changes between the characters and their cars.
In one shot that lasted no more than a second, a painfully obvious oversight can be seen. With the focus on Danny and Angel's car, the quaint countryside scenery was replaced by a green screen that had clearly been missed in the editing process. It was only for a split second, but it was unmissable.
Obviously, Simon Pegg, Nick Frost, Jim Broadbent, and Timothy Dalton weren't actually engaged in a high-speed chase, and so the green screen was utilised as it is with many driving shots. However, the important thing to remember here is that this technique is only effective if you actually do something with all that green afterwards.