"Some Extra-Terrestrials AREN'T friendly!"An infamous British cult classic made in 1982 directed by Harry Bromley-Davenport and produced by New Line Cinema, notable for being one of the strangest British horror movies ever made on account of its bizarre plot involving gruesome mutilations, nonsensical imagery and family drama.The plot is not that complex - Sam Phillips, a family man, is playing with his son in a field when the sky opens up and he is whisked away by a bright light. Three years later, his son Tony is still trying to cope, and Sam's former wife, Rachel, has a new American boyfriend. But then a light appears in the sky and something lands. Sam's back, and he's none too happy about the new family situation...The film is a bit of divider - its bizarre mash-up of a plot is the very same thing that people either love or loathe about the film. The film's bizarre synthesizer soundtrack, done by the director himself, also contributes to the off-kilter tone of the film.Spawned two sequels, the only connection between being that they have the same director and involve evil aliens.
— The film's tagline, making a reference to some other alien movie
This film has examples of:
- And I Must Scream: Analise after she is "impregnated" by Tony. She transforms into a completely immobile egg-factory and is implied to be conscious the full time.
- Asshole Victim: Mrs. Goodman - she horribly killed Tony's pet snake, after all!
- Attack of the Killer Whatever: The "Xtro"'s powers allow them to turn toys into various monstrosities, including a clown, tank, panther and commando.
- Bittersweet Ending: The original ending (for Rachel at least), which has Rachel return to the flat to find a host of Tony clones - it's creepy, but a bit happier as opposed to the final ending.
- Body Horror: Heaps of it, but especially the fates of the cottage owner and Tony's nanny, as well as Sam's final transformation.
- Creepy Child: Tony, after the "hickey" scene.
- Does This Remind You of Anything?: When Sam comes back, Tony finds him eating his pet snake's eggs, leading Sam to chase him down a dark alleyway, where he consoles him before leaning in and sucking on his shoulder, Tony moaning during the process. Later Sam refers to it as "our little secret", they comment that the nanny is "perfect" and Tony knocks Analise out and performs a similar process, sucking on her midriff. Sexual abuse metaphor, much?
- Deathby Sex: Not so much "death", but Sam's human form only starts to gruesomely rot and fall apart whilst in the process of having sex with his estranged wife.
- Downer Ending: The revised ending has Rachel getting assaulted by the Xtro eggs in a similar manner to the cottage lady.
- Dysfunction Junction: The 'family' is already tense before Sam comes back to ruin everything
- Fanservice: Bond girl Maryam d'Abo plays the nanny and even strips off in quite few scenes...
- Fan Disservice: ...only to get infested with alien DNA and turn into a living egg-dispensing cocoon. Talk about "sex object".
- Face Full of Alien Wing-Wong: Alas poor "Woman in Cottage". And Rachel too, in the revised ending.
- Follow the Leader: The film's gruesome focus on horrific birthings and eggs that clasp onto humans' faces was no doubt indebted to the likes of Alien and The Brood.
- Humans Are Special: Averted Hard. Once Sam becomes an alien, he embraces Blue and Orange Morality and feels no qualms about exploiting every Earthling he comes across, (even after he turns back into a human.) Once Tony begins the transformation process, he too adopts the same attitude, feeling little remorse about killing his neighbor and turning his babysitter into a seed-producing husk.
- Monster Clown: Armed with a razor-bladed yo-yo no less
- Murderous Mannequin: The life-sized Action Man that kills Mrs. Goodman.
- Reality Warper: Sam, after turning Tony into an alien, gives him the power to "If you think really hard about something, it will happen." Afterwards, Tony manifests a creepy clown, a jaguar, and causes his toys to attack.
- Surreal Horror: Whether it was deliberate or not is another question.
- Take That: Xtro's whole purpose is to give the middle finger to ET as well as Close Encounters of the Third Kind - not only is Xtro's ending a parody of how the aforementioned two films concluded, but the first thing Sam does after he is reborn is... phone home!