Fans have even begun tagging the movie's actors, such as Robert Downey Jr., Chris Hemsworth, Chris Pratt, Tom Hiddleston and Zoe Saldana.
While Marvel has yet to respond to the request, stars from the flicks have previously visited sick patients in hospitals.
In 2016, "Spider-Man: Homecoming" was filming in Atlanta, and star Tom Holland took a little time away from the set to visit the Children's Healthcare of Atlanta's Egleston location in costume.
"Meeting you all today was such a wonderful experience and you're all such little inspirations," he posted on Instagram. "We're proud of you and we love and we hope to be back soon and thank you for having us Egleston Children's hospital."