MCU: 10 Fascinating Facts Behind Ant-Man (2015)

5. It Almost Started AND Ended Differently

And talking of cancelled plans and deleted scenes, Peyton Reed's audio commentary reveals that he wanted initially to begin AND end the movie completely differently.

The opening would have been an action sequence set in the past and starring Michael Douglas' Hank Pym in his Ant-Man days, though you wouldn't have ever seen him. Honestly, it sounds amazing:

"It was a standalone sequence, where you really did not see it was Hank Pym. He was retrieving some microfilm from, originally Cuban general and then [due to timeline continuity] a Panamanian general. It was designed in early drafts to be almost like a Bond movie standalone scene in the beginning. It was going to show the powers. You never saw Ant-Man. It almost felt like an Invisible Man sequence, and it’s really, really cool."

And as for the end, Reed revealed that secondary villain Mitchell Carson (played by Martin Donovan) wasn't intended to get away with the stolen Pym Particles:

"At the end of the movie he gets away and has these Cross particles, and there was a sequence where Ant-Man has an encounter with him. But then for a couple reasons, it felt like maybe we should leave those particles out there. In that original thing, he took Martin Donovan out and got the particles."