Yeah, I read a quote from Mark Millar recently where he basically said that the confusion came in about the FIRST DRAFT of the script, which was nothing like the original comic - that's where all those rumors started. It's been through multiple rewrites since then, getting closer and closer to the original comic with each draft. He said the final script for the movie is pretty close to the comic, other than changing "supervillains" to "assassins" (although James McAvoy made a comment about perhaps exploring that in the sequel) - accodring to Millar, some of the scenes in the movie even use the exact same dialogue as the comic, word for word!