What was the last DVD you bought and why?

This box set features the following films:

Alien (Dir. Ridley Scott) (1979): The terror begins when the crew of the spaceship Nostromo investigates a transmission from a desolate planet and makes a horrifying discovery, a life form that breeds within a human host. Now the crew must fight not only for its own survival, but for the survival of all mankind.

Aliens (Dir. James Cameron) (1986): Sigourney Weaver returns as Ripley, the only survivor from mankind's first encounter with the monstrous Alien. Her account of the Alien and the fate of her crew are received with skepticism, until the mysterious disappearance of colonists on LV-426 lead her to join a team of high-tech colonial marines sent in to investigate...

Alien 3 (Dir. David Fincher) (1992): Lt. Ripley (Sigourney Weaver) is the lone survivor when her crippled spaceship crash lands on Fiorina 161, a bleak wasteland inhabited by former inmates of the planet's maximum security prison. Ripley's fears that an Alien was aboard her craft are confirmed when the mutilated bodies of ex-cons begin to mount. Without weapons or modern technology of any kind, Ripley must lead the men into battle against the terrifying creature. And soon she discovers a horrifying fact about her link with the Alien, a realisation that may compel Ripley to try destroying not only the horrific creature, but herself as well.

Alien Resurrection (Dir. Jean-Pierre Jeunet) (1997): Ellen Ripley (Sigourney Weaver) died fighting the perfect predator. Two hundred years and eight horrific experiments later, she's back. A group of scientists have cloned her, along with the alien queen inside her, hoping to breed the ultimate weapon. But the resurrected Ripley is full of surprises for her "creators", as are the aliens. And soon, a lot more than "all hell" breaks loose! To combat the creatures, Ripley must team up with a band of smugglers, including a mechanic named Call (Winona Ryder), who holds more than a few surprises of her own.

Predator (Dir. John McTiernan) (1987): Deep inside the jungles of Latin America a team of elite commandos are being slaughtered by a mysterious predator. No longer are they the hunters, they are the prey: of an alien whose only instinct is to kill. One by one it strikes with inhuman ferocity. Now to survive, with the jungle as their only ally they face their greatest challenge: to stay alive.

Predator 2 (Dir. Stephen Hopkins) (1990): Last time it landed in the jungle. This time, it's chosen Los Angeles. Ravaged by open warfare between rival drug gangs, L.A. is the perfect killing ground for the Predator, who is drawn by heat and conflict. When the police find mutilated bodies, Lieutenant Mike Harrigan (Danny Glover) thinks it's the work of the feuding gangs. Then a mysterious government agent (Gary Busey) arrives and orders him to stay off the case. Instead, Harrigan sets out to learn what is really going on, and comes face to face with the savage alien in a climatic, electrifying confrontation...

Alien Vs Predator (Dir. Paul W. S. Anderson) (2004): It may be our planet, but it's their war! The discovery of an ancient pyramid buried in Antarctica sends a team of scientists and adventurers to the frozen continent. There, they make an even more terrifying discovery: two unstoppable alien races engaged in the ultimate battle...

Aliens Vs Predator Requiem (Dir. Colin Strause, Greg Strause) (2007): The warring alien and predator races descend on a small town, where unsuspecting residents must band together for any chance of survival.