Although it will have the most visual effects shots of any Marvel movie, Avengers: Age of Ultron reshoots have been schedule for January to add more action to the upcoming superhero blockbuster. As we previously reported, Marvel has 12 VFX vendors in five to seven different countries working on over 3,000 visual effects shots, so they’ll be staying busy since more action in today’s blockbuster marketplace almost always means more VFX whether it’s doing green screen work, cleaning up shots, adding touich-ups, or perhaps going for something even a slightly bigger, although I assume if Marvel has anything truly spectacular, they’ve already started working on it. For example, they wouldn’t throw in the vaunted Hulk vs. Hulkbuster Armor fight in with only five months to go before the film opens.

Hit the jump for more. Avengers: Age of Ultron opens in 3D on May 1, 2015, and stars Robert Downey Jr., Chris Evans, Scarlett Johansson, Chris Hemsworth, Mark Ruffalo, Jeremy Renner, James Spader, Elizabeth Olsen, Aaron Taylor-Johnson, Paul Bettany, Don Cheadle, Andy Serkis and Samuel L. Jackson. [Spoilers Ahead]

The Daily Mail reports that Downey, Hemsworth, Ruffalo, Renner, Bettany, Johansson, and Tom Hiddleston have been asked to clear a space in their schedules for two-weeks in January to film additional scenes at Pinewood Studios. While director Joss Whedon may not require all of these actors, he wants them to be available if they’re needed.

Keep in mind that reshoots are standard on Hollywood films, and it’s really only extensive reshoots where movies might be in trouble, or sometimes saved as was the case with World War Z. It sounds like what’s happening with Age of Ultron is pro-forma, and it’s interesting that the lead Avengers actors have been called in except for Evans, so I assume the reshoots don’t need Captain America.

The Mail also reports that Avengers: Infinity War – Part 1 and Avengers: Infinity War: Part 2 will shoot back-to-back, and probably at Pinewood, which isn’t too surprising. The two movies come out on May 4, 2018 and May 3, 2019, respectively, and it’s better to shoot them together. It also means that whoever gets the directing gig will helm both films. Currently, the Russo Brothers (Captain America: The Winter Soldier and the upcoming Captain America: Civil War) have been rumored for the job.