Bloody-Disgusting has a report from a recent screening of Alien vs. Predator which included a Q&A with the film’s writer and producer Paul W.S. Anderson. Here’s an interesting bit…
About the studio’s cutting of the film, which he had no control over, he said, and I quote, “All of the best scenes were cut.” Anderson was obviously very annoyed at the way the film was released. However, this was not purely because of the PG-13 limitation, which incidentally, the studio enforced THREE WEEKS before the release date! It was always going to be R until then. Part of the reason for the cutting was that some of the effects were not ready by the time the release date came around. The effects team had very little time to do anything.
As far as the content that was cut, apparently we see all those who die, die on screen, but he also said that there is a sub-plot that we will have to wait for on DVD. Yes there will be an R-rated Director’s cut DVD although they don’t know the release date yet.
You can read the full Q&A details at the link above.