The People Under the Stairs is a horror film centered on themes of poverty, class, and extreme child abuse within a dysfunctional family. It does not include any discernible LGBTQ+ characters or explore related themes, resulting in no impact on their portrayal.

The film 'The People Under the Stairs' does not feature any identifiable transsexual characters or themes. Its plot revolves around a young boy's encounter with a bizarre, murderous family, and it does not engage with transgender identity in any capacity.

The movie does not contain any action or adventure elements.

The People Under the Stairs is an original film with characters created specifically for this production. There is no prior source material, historical record, or previous adaptation from which character genders could have been established and subsequently altered.

The film "The People Under the Stairs" is an original story by Wes Craven, not an adaptation of pre-existing material. All characters were created for this specific film, meaning there is no prior canonical or historical race to establish a baseline for comparison.