The Marvel Cinematic Universe is in a unique position as far as entertainment franchises go. With almost 30 films and six TV shows telling one continuous story, Marvel Studios has to carefully ensure that all these different pieces fit into a cohesive whole, which is only getting harder as more and more stories are weaved into this 14-year-old cinematic tapestry.
In other words, MCU boss Kevin Feige (and his team of producers) has to not only make sure that each project works as a standalone piece of entertainment - he has to make sure that they all make sense within the broader context of this universe.
Having to build each movie and show in such a methodical way means that tons of great ideas end up being scrapped. Perhaps they wouldn't have jived with the MCU's many ongoing storylines, wouldn't have fit with the franchise tonally, or were simply unnecessary additions to their respective movies.
Many of these ideas don't sound like huge losses, but a few of them actually sound pretty darn awesome, from The Winter Soldier's epic alternate opening, to a Thanos moment that would've had fans around the world losing their minds with glee...
10. Arnim Zola Gets A Robotic Upgrade
Arnim Zola is one of the MCU's most underappreciated villains. Played by the brilliant Toby Jones, the character was involved in some pretty major moments in MCU history, from rebuilding HYDRA, to turning Bucky into the Winter Soldier.
Zola was last seen on the big screen in 2014's Captain America sequel, where his attempt to destroy Steve and Natasha with a couple of heatseeking missiles resulted in his destruction. However, as per some concept art drawn by Josh Nizzi, he almost appeared in 2015's Ant-Man too - and with quite a bold look, we might add.
With his Terminator-esque metal body, holographic head, and stylish leather jacket, this android version of Zola looks absolutely badass, and it would've been awesome to see it brought to life via Marvel Studios' special effects wizardry.
And as for how this robo-Zola would've factored into Ant-Man's plot? Well, there was a time when he was scheduled to appear in the first act of the movie, alongside Peggy Carter, Howard Stark, Hank Pym, and Alexander Pierce - an idea that clearly morphed into the finished film's 1989-set prologue.