Primer, a complex science fiction film about accidental time travel, does not feature any identifiable LGBTQ+ characters or themes. The narrative is solely centered on the scientific discovery and its ethical and personal ramifications for the two male engineers, rendering the LGBTQ+ portrayal N/A.

The film 'Primer' does not feature any identifiable transsexual characters or themes. Its intricate narrative is solely focused on the accidental invention of time travel and the resulting ethical and personal dilemmas for its protagonists, without any exploration of gender identity.

The movie does not contain any action or adventure elements.

Primer is an original film with no pre-existing source material, historical figures, or prior adaptations. All characters were created for this film, meaning there are no established characters whose gender could have been swapped.

Primer is an original film with characters created specifically for this production. There is no prior source material, historical basis, or previous installment from which character races could have been established and subsequently changed.