Alien, a science fiction horror film, does not contain any identifiable LGBTQ+ characters or themes. The narrative focuses on the crew's struggle for survival against an extraterrestrial creature, with no explicit or implicit exploration of queer identity or relationships.

'Alien' is a science fiction horror film that does not feature any identifiable transsexual characters or themes. The story centers on survival against an alien creature, and gender identity is not a component of its narrative or character development.

The movie does not contain any action or adventure elements.

Alien (1979) is the inaugural film in its franchise, introducing all its characters for the first time. There is no prior source material or established canon from which character genders could have been swapped.

Alien (1979) is the original film in its franchise, not an adaptation or reboot of pre-existing material with established character races. Therefore, no character could have been race-swapped from a prior canonical or historical depiction.