I've seen most of the superhero movies that have been made in the past ten years. Deadpool is nothing like any of them.
Alternately dark and uproariously funny, Deadpool (Ryan Reynolds) is actually not, in his own words, a hero. He's a mercenary named Wade Wilson who was once a special forces operative. When he finally finds love with a paid escort named Vanessa (Morena Baccarin), he's finally ready to settle down--but shortly after he proposes marriage to her, he learns he has terminal cancer. Offered one chance at beating it through an experimental program, he leaves Vanessa with no explanation and takes a gamble that leads to torture, disfigurement, and a cure that gives him the ability to heal himself of just about anything.
He escapes a fire he set in the lab, but finds going home to Vanessa can't happen until he forces a man who calls himself Ajax (Ed Skrein), the same man who "cured" him through a series of injections of mutant genes (and in the process tortured and mutilated him), to fix the damage that's been done to his appearance. He creates a costume to hide his damaged face and body and takes the name Deadpool from a regular contest at his favorite bar in which patrons bet on who among them will be the next to die. In each confrontation with his nemesis, Deadpool taunts Ajax by using his real name, Francis.
When Ajax and his partner in crime, Angel Dust (Gina Carano), kidnap Vanessa, it leads to a confrontation between the two of them, their hired goons, and Deadpool and two X-Men, Colossus (Stefan Kapicic) and Negasonic Teenage Warhead (Brianna Hildebrand), aboard a decommissioned helicarrier. When Deadpool discovers Ajax can't fix his disfigured face, he does what he's wanted to do to the sadistic Ajax all along. Do Deadpool and Vanessa get a happy ending? You'll have to see the movie and find out!
Deadpool is full of in-jokes (look for the Feige's Delicious Pizza box, a nod to Marvel Studios head Kevin Feige) and a reference to SHIELD leader Nick Fury--or more accurately, his portrayer, Samuel L. Jackson--in the end credits scene, just to name two). Deadpool's comments to the audience--the character has a tendency to break through the Fourth Wall, something he shares with his comic book counterpart--are clever, especially when Deadpool makes disparaging remarks about Ryan Reynolds. Even the film's opening credits are irreverent, referring to Ryan Reynolds as "God's Perfect Idiot," the director, Tim Miller, as "an overpaid tool," the writers as "the real heroes," and other cast and crew members as "asshats"--among other things.
Before the film's release, there was some concern that the R rating might hurt it at the box office, since superhero movies are so popular with kids. But even without kids in the audience, Deadpool has made an impressive $516,754,693.00 at the box office internationally so far.