AVPR: Aliens vs Predator - Requiem [2007] (1 disc)

The Predator was nicknamed "Wolf" by the filmmakers, after the character Winston Wolfe in Pulp Fiction. His role in the film, like Wolfe's, is described as that of a "cleaner" - one who covers up assassinations, accidents, and other messy situations. The Predalien was nicknamed "Chet" on set and in the script. This was to avoid early spoilers about the nature of the creature (i.e. it being a hybrid between the Alien and Predator). The name "Chet" was a reference to the obnoxious brother from the movie Weird Science (who was played by Bill Paxton)
Bill Paxton was approached to play the diner chef so he could appear in the second [Predator], [Alien] and [AvP] film in each series. However, scheduling conflicts prevented him from making an appearance.
This is the first movie in both the Predator and the AVP-based movies that actually feature scenes of the Predators' home planet. It was at one time hoped to include scenes of the Aliens' home world. Conceptual art was created and it was even storyboarded to be used as the closing shot of the movie, but ultimately the idea was dropped in favor of using it in a potential third film.
Sound effects from previous films in both franchises were used in this film.
It was decided at an early stage that this movie would be R-rated as "it is what the fans want from the series".
At the cemetery sequence, the man with a gun stands in front of a tombstone with the name "HAWKINS" on it. Hawkins was one of the soldiers of Dutch (Arnold Schwarzenegger) on the first Predator movie, played by Shane Black, today a screenwriter ([Lethal Weapon] franchise) and director (Kiss Kiss Bang Bang).
This is the first time in the franchise that a Chestburster emerges from a child.
In the original script, the Pred-Alien was to have died when the Predator shipped crashed which occurred on page 3 or 4 of the script. It was re-written to incorporate the creature into the movie and make it the main villain as the studio was very impressed by the concept.
The Yutani character (of the "Weyland-Yutani" Company from the [Alien] films) was originally going to appear in the AVP: Alien vs. Predator, but was written out. The character was originally conceived to be male.
Steven Pasquale's character "Dallas Howard" shares his name with Tom Skerritt's character from the original Alien movie - Dallas was the captain of the Nostromo. Moreover, he says the line "Get to the chopper!", which was also said by Dutch (Arnold Schwarzenegger) in Predator. Perhaps a coincidence, he also shares his name with actress Bryce Dallas Howard who does not appear in any of these series.