Days of Future Past and Logan, in particular, are considered among the greatest superhero films ever made, with each receiving Academy Award nominations for Best Visual Effects and Best Adapted Screenplay respectively.

[13] A prequel and a spin-off focusing on the character Wolverine and his relationship with his half-brother Victor Creed, as well as his time with Stryker's Team X, before, and shortly after his skeleton was bonded with the indestructible metal, adamantium.

[18] Set after the events of X-Men: The Last Stand, the film features Wolverine heading to Japan for a reunion with a soldier named Ichiro Yashida whose life he saved years before.

[26] In 2029, Logan and Charles Xavier meet a young girl named Laura, a test-tube daughter of Wolverine, who is being hunted by the Reavers led by Donald Pierce.

[27][28] By November 2013, 20th Century Fox had begun negotiations for the treatment for a third Wolverine solo film with director James Mangold and Donner attached to produce.

Set primarily in 1962 during the Cuban Missile Crisis, the film focuses on the origins of, and relationship between Charles Xavier / Professor X and Erik Lehnsherr / Magneto and their respective teams of mutants, the X-Men and the Brotherhood.

[38] Vaughn, who was previously attached to direct X-Men: The Last Stand, became the director and co-wrote the final script with his writing partner, Jane Goldman.

[41] The story, inspired by Chris Claremont and John Byrne's The Uncanny X-Men comic book storyline "Days of Future Past", features Wolverine going back in time to 1973 to prevent an assassination that, if carried out, will lead to the creation of a new weapons system called the Sentinels that threatens the existence of mutants—and, potentially, all of humanity.

[50] Set a decade after X-Men: Days of Future Past, En Sabah Nur, the first mutant, awakens after thousands of years.

When a solar flare hits Jean Grey during a rescue mission in space, she loses control of her abilities and unleashes the Phoenix.

David S. Goyer was set to write and direct and courted actor Ryan Reynolds for the lead role, but lost interest within months in favor of other projects.

[70][71][72] 20th Century Fox acquired Deadpool the following year after New Line Cinema placed it in turnaround and was considering the spin-off in the development of X-Men Origins: Wolverine, with Reynolds being cast for the role.

[70] After the opening weekend success of X-Men Origins: Wolverine in May 2009, Fox lent Deadpool out to writers with Donner acting as a producer.

Acting as a spin-off to the X-Men films, it is co-written by Knate Gwaltney, Scott Neustadter and Michael H. Weber with Donner and Kinberg producing.

[92] After completing work on the first season of Fargo at FX in 2014, Noah Hawley was presented with the opportunity to develop the first live-action television series based on the X-Men comics, of which he was a fan when growing up.

"[97] That May, FX ordered an eight-episode first season of Legion,[98] starring Dan Stevens as the title character, alongside Rachel Keller, Aubrey Plaza, Jean Smart, Jeremie Harris, Amber Midthunder, Katie Aselton, Bill Irwin, Jemaine Clement, and Hamish Linklater,[98][99] with Navid Negahban and Lauren Tsai respectively joining the cast in the second and third seasons.

[100][101] In January 2016, Landgraf stated that the series would be set in a universe parallel to the X-Men films where "the US government is in the early days of being aware that something called mutants exist but the public is not".

He did state that "you can't tell this story without" acknowledging that Legion is the son of the same incarnation of Charles Xavier who appears in the films (portrayed by Patrick Stewart and James McAvoy).

The new pilot, written by Matt Nix, was for an action-adventure series based on ordinary parents discovering their children's mutant abilities.

Fox Entertainment President David Madden said that "developing a Marvel property has been a top priority for the network—and we are so pleased with how Matt Nix has led us into this thrilling universe."

[110] He created an elaborate presentation using Prezi which included photos of preferred actors that he had altered to look like mutants, and graphics to explain how the series would fit in with the continuity of the X-Men films.

[118][119] Chung was then joined by Stephen Moyer, Sean Teale, Natalie Alyn Lind, Amy Acker, Percy Hynes White, Coby Bell, and Emma Dumont as Lorna Dane / Polaris, the daughter of the incarnation of Magneto portrayed by Ian McKellen and Michael Fassbender.

[168] Wesley Morris of The Boston Globe praised the first three X-Men films as "more than a cash-guzzling wham-bang Hollywood franchise ... these three movies sport philosophy, ideas, a telethon-load of causes, and a highly elastic us-versus-them allegory".

"[175] Roger Ebert gave the films mostly positive reviews but criticized them for the amount of mutants, stating "their powers are so various and ill-matched that it's hard to keep them all on the same canvas".

"[178] David Denby of The New Yorker praised "the liquid beauty and the poetic fantasy of Singer's work", but called Ratner's film "a crude synthesizer of comedy and action tropes".

He observed the filmmakers were "big fans of silent henchmen", due to the small roles of the various villainous mutants; such as Lady Deathstrike and Psylocke.

[185] In his review of Dark Phoenix, Joe Morgenstern of The Wall Street Journal characterized the entire X-Men film series as being a "notoriously erratic franchise".

[312] Also reprising their roles from the previous Deadpool films are Karan Soni, Leslie Uggams, Morena Baccarin, Stefan Kapičić, Rob Delaney, Brianna Hildebrand, Lewis Tan and Shioli Kutsuna reprised their roles as Dopinder and Blind Al, Vanessa Carlysle, Colossus, Peter Wisdom, Negasonic Teenage Warhead, Shatterstar and Yukio.

[313][314][315] Several other actors reprised their roles as characters who were exiled from the original series' universe into the Void, including Aaron Stanford as John Allerdyce / Pyro, Dafne Keen as Laura / X-23, and Tyler Mane as Victor Creed / Sabretooth,[316][317] as well as the characters Azazel, Juggernaut, Lady Deathstrike, Psylocke, Toad, Callisto, Arclight, and Blob.

Additionally, the film's credits feature a tribute to the original franchise in the form of a montage of clips, behind-the-scenes footage and the 20th Century Fox logo set to "Good Riddance (Time of Your Life)" by Green Day.