Wildstorm/DC Comics have released a comic miniseries, written by Marc Bernardin and Adam Freeman, based on PUSH. The comic books are actually prequels to the movie, and are supposed to follow Nick, the lead character in the movie played by Chris Evans, as a youth. I say "supposed to" because the first three issues that I've gone through don't mention him...
The first three issues focus on Ezra, the only agent in the mysterious "Division" who is a "Changer". His power? You guessed it, he can temporarily take on the form of another person.
The "Division" is a secret U.S. government agency. In issue #2 and #3 you learn a bit about the creation of the "Division." Apparently the bombs that were dropped in World War II awakened dormant abilities. Ezra was the first agent in the "Division."
Where did Ezra come from? For that you have to read issue #3... Ezra was part of Hitler's Nachtkrieg project. Hitler would round up people that were believed to possess extranormal abilities. They would then take these people and attempt to reverse-engineer them and create a super-army of psychic soldiers.
At the end of the war, as the Allies combed through the ashes of the Third Reich, U.S. Grunts found Eztra. Evidence the found suggested that Russia was also developing a similar program.
This in-turn lead to the U.S. launching their "Division," a domestic version of Nachtkrieg and beating the Russians.
I'm not big into spoilers, so suffice it to say that Ezra sees and learns things that he shouldn't and the "Division" doesn't like it.
The artwork is decent, but what makes these worth having is the story and writing. If you're into cloak-and-dagger/espionage/political intrigue stories, you'll like the PUSH comics. If you're into superhuman slug-fests, you may want to pass. The first three issues were rather light on action.