Robert Downey Jr., Mark Ruffalo And Russo Brothers Celebrate Second Anniversary Of 'Avengers: Endgame'

"Avengers: Endgame" premiered on April 26, 2019, and the cast members took to social media to celebrate its second anniversary.

Mark Ruffalo, who portrayed the superhero Hulk and his alter ego Robert Bruce Banner, shared on Instagram a photo featuring him with co-stars Chris Hemsworth, Chris Evans, Robert Downey Jr., Scarlett Johansson and Jeremy Renner.

"Can't believe it's been two years since the premiere of #AvengersEndgame. Love you all 3000," he wrote in the caption. "Congrats to Elizabeth Olsen, @paulbettany, @anthonymackie, @imsebastianstan, and all our extended MCU family newly introduced in their shows so far."

He also gave a shout-out to Tom Hiddleston and Renner toward the end of his post by writing, "Excited to see what's next for @twhiddleston & @jeremyrenner!"

Downey Jr., who portrayed the superhero Iron Man, also known as Tony Stark, shared a previously unreleased behind-the-scenes clip on Instagram.

In the video, the 56-year-old actor can be seen raising his hand while his eyes are closed. Behind him is a green screen. Shortly after, his hand does the snap gesture. According to Cinema Blend, the scene is a "far more peaceful version of Iron Man's 'snap moment.'"

"Cannot believe it’s been two years since Endgame... #LoveYouAll300," Downey Jr. said in the caption.

The movie director duo, the Russo brothers, composed of Anthony and Joseph Russo, also celebrated the blockbuster hit movie's second anniversary by sharing a series of behind-the-scenes photos and videos on their Instagram account.

One of the photos included in the set features Chris Evans, Chris Hemsworth and Pom Klementieff. The three celebrities, who are all wearing their respective costumes, are surrounded by crew members.

As for the only video in the post, it shows Paul Rudd in his Ant-Man costume. He can be seen celebrating the final day of filming together with some cast and crew members.

"2 years since the release of Endgame...," the Russo brothers wrote in the caption. "Which theater did you see it in for the first time?"

Rudd, 52, will be seen in the "Ant-Man and the Wasp: Quantumania" movie, which is scheduled for 2022 release. Besides the superhero franchise, the actor will also be featured in "Ghostbusters: Afterlife," which is slated to release on Nov. 11, 2021.

The actor will also is also part of David Gordon Green's "Halloween Kills," which is set to come out on Oct. 15.

Downey, on the other hand, will be seen reprising Iron Man in "Black Widow." Currently, he is also working on "Sherlock Holmes 3," which will be released on Dec. 22.