Cables family is murdered by Russell aka Firefist a mutant that can manipulate fire. This does get shown in a flashback that explains Cables motive to murder Russell in the past so his family isnt murdered by Russell, that is why Cable time travels back to the past to kill the kid Russell before he murders the Headmaster so his family survives.

Deadpool is shown killing bad guys in the opening scene, he doesnt kill a Bad Guy because he escapes to a safe area, the same bad guy is able to find Deadpool where he lives and kills Vanessa.
Deadpool knowing hes responsible for Vanessa getting murdered is somber, attempts suicide by using a explosive that fails since he has a healing factor.


Deadpool disagrees that Russell cant be saved if he hasnt murdered the Headmaster which Cable knows is the 1st person he murders. This is the event of why Russell becomes a remorseless murder if he murders the Headmaster which is why Deadpool wants to save him before that so Cable doesnt have to kill him.
Deadpool and Domino are both fighting Cable because they dont know why Cable wants to kill Russell, and Deadpool does disagree that Russell should be killed if he hasnt murdered a person. This is why Cable decides to offer to work with Deadpool and the X-Factor to prevent Russells 1st murder.

Domino is shown in action including moving into a Transportation Truck that has Mutant Prisoners, fighting Cable, parachuting, etc.

It was great that Colossus quoted Robocop from the 1st movie with the whole trouble line which Deadpool recognized and says thats from Robocop. Deadpool breaking the 4th wall saying that family movies including the Disney movie Bambi start with a death, it was a joke he names a Saw movie because Saw movies are not family movies.
He talks about the Box office success of Deadpool a high grossing rated R movie that isnt higher than The Rated R Drama movie Passion of Christ the amount of money made at the box office the highest amount for a Rated R movie, autographs Ryan Reynolds for a picture instead of Deadpool, looking at the camera thats just lazy writing in response to time traveling explained in this movie, and does when first seeing Juggernaut says information including his 1st appearance in a comic book, brings up information Cable reminding him of Winter Soldier, the whole DC Cinematic Universe you must be from the DC Universe to Cable with being dark.

Im shocked that Juggernaut, Dopinder and others dont ask him about the information they dont know about when breaking the 4th wall, also ask who is he talking to when breaking the 4th wall.
This has a exciting great climax with Juggernaut fighting Cable and Deadpool without sweating, it becomes a great fight with Colosssus fighting Juggernaut and is able to defeat him by fighting dirty. Also Domino moving through the Orphanage moving the orphans out of the building. Russell pursuing the headmaster using his fire manipulation powers wrecking the Building.

Juggernaut easily fights Deadpool, and rips his body in half.

The genuine funny parts is Deadpool imitates a scene from Say Anything to persuade Colossus to help them save Russell with a song playing, Deadpool having to walk with baby legs, Peter has no powers and is hired for X-Factor, Dopinder wants to become a Hitman, etc.

Since the staff and the Headmaster abused Russell and other mutants it logically explain the emergency with Russell using his mutant powers outside the Orphanage building with the intent to destroy the orphanage building and hurt staff and the Headmaster.

Deadpool does attempt to persuade Russell not to murder the Headmaster its unsuccessful, Deadpool puts on a collar that prevents mutant powers from being active, Cable shoots at the Russell and Deadpool sacrifices himself jumping in front with Deadpool is shot and killed. Wilson is reunited with Vanessa in the afterlife but finds out it isnt his time.
The future has been altered Cables family survives, he time travels back several minutes straps Vannesas token in front of Deadpools heart, now Deadpool again sacrifices himself but doesnt die because the token stops the bullet.
Impeccable timing because Deadpool talks about karma for why Russell and others shouldnt murder the Headmasster, and the Taxi Driver Dopinder driving fast drives through a area and runs over the Headmaster.
In the extra scene Deadpool time travels to the past preventing Peter and others from dying, kills the lameass Deadpool before he fights Wolverine in X Men Origins Wolverine, and kills Ryan Reynolds before he can sign to be in the abomination awful movie the embarrassment that is Green Lantern.

Most likely this X-Factor will be shown in the 3rd movie.