Next cheapest I can find is Zavvi at £14.85 with SMS discount.
A collection of the films ALIEN, ALIENS, ALIEN 3, ALIEN RESURRECTION, PREDATOR, PREDATOR 2, ALIEN VS PREDATOR, and ALIENS VS PREDATOR - REQUIEM.
ALIEN is the chilling science fiction story of seven astronauts who become the victims of a galactic horror when they stumble upon an alien life form never seen before.
In ALIENS, Ripley is asked to go back to the planet where the aliens were first found, when communications with the colonists are lost.
In ALIEN 3, Ripley finds herself a survivor of another alien attack. This time she finds herself on Fiorina 161, a penal colony. It is not long before Ripley realises that her doomed escape pod was contaminated with the alien. Now she is imprisoned on a planet where weapons are unavailable.
ALIEN RESURRECTION is set two hundred years after Ripley. A group of scientists clone her and the parasitic alien. Anxious to test out their new weapon the scientists abduct a crew. The alien escapes and takes control of the spacecraft with only 'Ripley' and a team of smugglers standing between it and Earth.
PREDATOR is set in the remote jungle of a Central American country, where an elite group of commandos led by Major Dutch Schaeffer embarks on a CIA mission to clear out a guerrilla stronghold and rescue the remaining hostages. However, the hunters become the hunted when a highly intelligent, otherwordly being slowly and methodically starts killing off members of Dutch's team.
PREDATOR 2 finds the police force of 1997 Los Angeles losing the battle against the drug lords and the gangs of thugs which control the streets. Suddenly the killers are the victims of an alien being..
In ALIEN VS PREDATOR, a group of archaeologists find themselves fighting for survival when they discover a number of aliens buried in the ice. Their survival rate is hampered further by the arrival of more aliens on a training mission.
In ALIENS VS PREDATOR - REQUIEM, a Predator on a homebound spacecraft has a baby alien/Predator hybrid burst from his chest, causing the ship to crash in the Colorado woods. Several facehugger specimens escape, planting eggs down the throats of a hunter and his son. The dead Predator's home planet receives a transmission of the alien outbreak, and a fellow denizen of his world is dispatched to clean up the multiplying aliens.