Perhaps most surprising was BS&P's objection to the term "assassin," though, given how often that word was used in the first season's "Days of Future Past" two-parter.

Source: https://www.cbr.com/history-xmen-animated-series-adaptation-marvel-comics/

She's been played by several actors, including Sumela Kay in "X-Men," Katie Stuart in "X2," and Elliot Page in "X-Men: The Last Stand" and "X-Men: Days of Future Past."

Source: https://www.slashfilm.com/1154168/joss-whedon-considers-the-x-mens-kitty-pryde-the-mother-of-buffy-the-vampire-slayer/

While Mangold’s 2013 feature did feature a mid-credit sequence teeing up X-Men: Days of Future Past, even back then, this filmmaker was untrustworthy of mainstream credit scenes.

Source: https://collider.com/does-indiana-jones-dial-of-destiny-have-end-credits-scene-post/