This review of X3 had an interesting note about one of the best scenes of the movie:
In one scene, the unstoppable Juggernaut (Vinnie Jones) bashes through wall after wall, until a naive Kitty Pryde (Ellen Page) slows him down by sinking him into the floor. The angry mutant declares, “I’m the Juggernaut, bitch!” and then continues on his quest, but the brief line sticks out glaringly in an otherwise vulgarity-free film. “When that line comes up, I’m probably going to start breakdancing, and Randy will scream out the phrase himself,” 21-year-old college student Xavier Nazario said excitedly, thrilled over the prospect of watching Jones utter the line made popular by an Internet spoof Nazario released last February. Using an old “X-Men” cartoon, Nazario and pal Randy Hayes dubbed their voices in, giving birth to the now-famous catchphrase. Hayes, who voiced Juggernaut’s ghetto persona in the top-rated YouTube.com clip, isn’t quite so shocked that Ratner paid tribute to the clip. “Everybody loves the Juggernaut,” he laughed.