In single disc rated theatrical, in single disc unrated theatrical, extreme unrated two-disc special edition, and Blu-ray Disc.

Review: For those who found 2004's Aliens vs. Predator too lightweight in the gore-and-guns department, Aliens vs. Predator: Requiem offers a marked improvement in both categories, as well as a respectable amount of rumbles between the title extraterrestrials. Set in the 21st century (which predates the story to all of the Alien features), Requiem sends a crippled Predator ship crashing to Earth in a small Colorado town; unbeknownst to the locals, the craft is loaded with H.R. Giger's insectoid monsters, which make quick work of most of the population. As the human cast is slowly whittled to a few hardy (if unmemorable) souls, a Predator warrior also arrives to complicate matters and do battle with the Aliens, as well as a ferocious alien-Predator hybrid (dubbed a Predalien by the sci-fi and horror press). Visual-effects designers and music-video helmers The Strause Brothers (who make their feature directorial debut here) keep the action on frantic throughout...more

Extras: Single discs: Commentary by directors Colin and Greg Strause and producer John Davis, commentary by creature effects designers/creators Tom Woodruff Jr. and Alec Gillis. Extreme unrated adds 10 minutes of never-before-seen gruesome footage; five behind-the-scene featurettes: "Prepare for War: The Making of AVP-R," "Fight to the Finish: The Making of AVP-R," "AVP-R: The Nightmare Returns -- Creating the Aliens," "Crossbreed: The PredAlien" and "Building the Predator Homeworld"; still design galleries. (Fox).