Since the turn of the century, comic book movies have become the driving force of the Hollywood box office. From superhero flicks to gritty graphic novel adaptations, there is an overwhelming abundance of comic book culture in mainstream cinema.
The majority of these films live long in the memory thanks in large part to iconic scripted moments. From Hugh Jackman's farewell as Wolverine to Wonder Woman's charge across No Man's Land, comic book movies have become an inspirational part of society.
For an actor, landing one of these roles can provide them with a monumental platform. This performance could determine their career, and ensure they have a lasting memory as an iconic character. Robert Downey Jr. will always be remembered as Iron Man, and Heath Ledger's legacy is defined by the Joker.
But sometimes these actors need to do more than just portray a character. They need to live and breathe every second as that character. This allows them to have ideas that go beyond the script, and, as detailed in this list, create improvised moments that supersede anything a writer could ever imagine.