In the recently held San Diego Comic-Con, Marvel announced the sequel of the movie during the "Avengers: Age of Ultron" panel, according to BBC. The sequel is slated for release on July 28, 2017. This is one of the six movies that Marvel already has on the schedule. Josh Brolin will play Thanos in both "Avengers: Age of Ultron" and "Guardians of the Galaxy 2." The actor wore his infamous Infinity Gauntlet on stage.

"Guardians of the Galaxy" revolved around four misfits, whose mission is to save the universe from Ronan. Ronan had a deal with Thanos, but decided to break it and took the infinity stone himself. In the ending of the movie, Ronan was defeated by the guardians. However, their real enemy is still out there—Thanos.

Brolin was at the Comic-Con to talk about the "Avengers" sequel movie, together with Robert Downey Jr., Chris Hemsworth, Mark Ruffalo, Jeremy Renner, Chris Evans and Samuel L. Jackson. There, the teaser trailer for the movie was shown. The trailer revealed an interesting scene - it looks like someone from the Avengers might die in the movie.

The "Avengers: Age of Ultron" will be released on 2015. Aaron Taylor-Johnson and Elizabeth Olsen will join the cast as Quicksilver and Scarlet Witch. The movie will be directed by Joss Whedon.

Meanwhile, Chris Pratt, who plays Peter Quill, is more than thankful for the huge success of the movie. It has actually broken box office records for Marvel too. In the first weekend alone, the movie earned $94 million.

Pratt took to Facebook to say "Thank you everyone watching #GuardiansOfTheGalaxy this weekend! We're all so happy that people are loving it. Stay for the credits, not just the awesome post credit sequence but to read the hundreds if not thousands of names responsible for bringing it to the screen. #grateful"