Ian McKellen, Hugh Jackman, Halle Berry celebrate 20 years of 'X-Men
Based on the characters created by Stan Lee and Jack Kirby in Marvel Comics, "X-Men", directed by Bryan Singer, was released in 2000, and its success led to a series of sequels, prequels, and spin-offs, with the popularity of the series seeing a re-emergence of the superhero genre.
McKellen, who played the magnetic Magneto in the films, shared a picture on Twitter where he could be seen making a call from a "working phone booth" with the date of the film's release visible on a large hoarding.
"It was twenty years ago today, when there was still a working phone booth on Santa Monica Blvd and La Brea," he captioned the photo.
Jackman, who shot to international fame as the adamantium-clawed mutant Wolverine in his first Hollywood film "X-Men", shared an old video from his initial training days fighting a Wolverine figurine.
"So here's the thing. When the studio asked if I could be in shape to play #wolverine in 3 weeks ... I might (have) over promised. But wouldn't you have too? Happy Anniversary X-Men universe. #xmen," the actor said.
Jackman holds the Guinness World Record for "longest career as a live-action Marvel superhero" for playing Wolverine. He has played the character in eight films in the franchise, while fronting "X-Men Origins: Wolverine", "The Wolverine", and "Logan", his swansong as the mutant in 2017.
Berry, who starred as the weather mutant Storm, shared a cartoon of herself with cast members as their characters - Wolverine, Jean Grey, played by Famke Janssen, and Cyclops, essayed by James Marsden.
"#XMen20thAnniversary," she captioned the picture on her Instagram Story.
Janssen shared the poster of the film on Instagram and wrote "Happy 20th Anniversary to X-Men the Movie".
The original film also starred Patrick Stewart as Professor X, the founder of X-Men group, Rebecca Romijn as Mystique, Anna Paquin as Rogue, Ray Park as Toad, Tyler Mane as Sabretooth, among others.