Reason:
Hank Pym discovered a micro-shaped atom that could shrink the body to the size of an ant and then return it to the size of a normal human. He used his This thing is named Pymparticles.
After becoming smaller, Pim's strength increased. Later, he studied ants vigorously and made an electronic helmet that could communicate with ants, becoming Ant-Man (Ant-Man) who can shrink and control ants freely. Man). Extended information
The script of Ant-Man
Before the box office success of "Iron Man", Edgar Wright created a script for the Marvel Comics character "Ant-Man" Movie script. At Comic-Con 2011, Edgar Wright said that he and his old partner, screenwriter Joe Cornish, had completed the final draft of the script for the "Ant-Man" movie.
In mid-to-late August 2013, Edgar Wright stated that "Ultron", the core villain of "Avengers: Age of Ultron", would not appear in the "Ant-Man" movie. The reason why Ultron was deleted from "Ant-Man" is to make the plot more concise and focus more on Ant-Man.
On June 8, 2014, Marvel confirmed that "Anchorman" director Adam McKay would assist in the creation of the script. On July 8, 2014, "Ant-Man" confirmed the invitation of two new screenwriters, Gabriel Ferrari and Andrew Barrier, and the film studio hopes that they will make final revisions to the script.
In mid-October 2014, screenwriter Adam McKay talked about how he and actor Paul Rudd revised the script in an interview, and revealed that many new action scenes were added. However, some of Edgar Wright's script will still be retained.
Baidu Encyclopedia-Ant-Man
Baidu Encyclopedia-Ant-Man