When people look back at Deadpool as he was depicted in X-Men Origins: Wolverine, there's one question just about everybody asks:
How the hell did that go so wrong?
Well, now that the Deadpool solo film has made more money than anybody ever expected, we've got an answer to that question (kind of). Basically, their answer is "Well, it's really hard to get a character onscreen."
That's from Studio ADI, who provided the creature effects, so at the end of the day it wasn't really their fault that the Merc With a Mouth ended up...well, mouth-less. But they took some time out to explain how they came to it in the video you can see above.
Saying that it's more than just the producers or the filmmakers -- it's also Marvel, licensors and many others who play a role in crafting a movie like X-Men Origins, the video (originally released in 2013, but circulating again now) admits openly "this is not that character," and said it was the studio setting up Deadpool for later.
Based upon Marvel Comics’ most unconventional anti-hero, DEADPOOL tells the origin story of former Special Forces operative turned mercenary Wade Wilson, who after being subjected to a rogue experiment that leaves him with accelerated healing powers, adopts the alter ego Deadpool. Armed with his new abilities and a dark, twisted sense of humor, Deadpool hunts down the man who nearly destroyed his life.