One of the best jokes in Deadpool comes at the expense of X-men Colossus and Negasonic Teenage Warhead. Turning up at the X-mansion, Deadpool quips "Big house and I only ever see two of you. It's like the studio couldn't afford another X-men."
Not only is it astute, and funny because using 'X-Men' is as a singular sounds ridiculous, but it's a cool nod to the fact that the two X-men featured in Deadpool are pretty damn obscure, particularly Negasonic. In fact, she's only appeared a total of three times in Marvel comics, being killed, resurrected and instantly killed again, and she basically didn't resemble the moody teen we see on screen at all.
What do we know about Negasonic Teenage Warhead?
Her real name is Ellie Phimister, and her mentor is Emma Frost, who was played villainously by January Jones in X-Men: First Class. She has visions of the future in her dreams, much like Jean Grey in [X-Men: Apocalypse](tag:1194267), but in the comics she doesn't really do much else.
Deadpool completely reinvents her, giving Negasonic a stereotypically teenage attitude and the ability to use charges of energy to create explosions. Her powers actually more resemble those of the Marvel villain Nitro, who turns himself into a bomb but actually blows up his own body in the process, and later repairs his physical form.
Comic book fans can be pretty militant about not switching up heroes' powers on screen, but in the case of Negasonic it seems like a smart move. Her new abilities actually make sense given her name (she was named after a Monster Magnet song), and if you didn't laugh at her pausing to send an unseen Tweet in the big fight scene finale, you clearly haven't spent much time in the company of new Millennials.
The original script draft for Deadpool didn't even include the miniature Sinead O'Connor, but director Tim Miller thought there was too much sword play at the expense of traditional superpowers, considering the film takes place in the X-Men universe, so he revised the script and added Negasonic in.
Here's writer Rhett Reese talking about the process of adding NTW:
We changed her to having this kind of explosive… because just the sound of the name - "Warhead" - implies to us that she could kind of become a human bomb, and we ran with that. There will be a few people offended by that, but she wasn’t a major enough character that I think we won’t piss too many people off.
She may not talk much, and we may not have access to her Instagram, but Negasonic Teenage Warhead made a pretty explosive impact on Deadpool and inspired a lot of Wade Wilson's best jokes, so here's hoping she'll stick around for the sequel.