Source Code does not feature any identifiable LGBTQ+ characters or themes. The narrative focuses on a sci-fi thriller plot involving time loops and a terrorist threat, without incorporating elements related to queer identity or experiences.

The film "Source Code" does not feature any identifiable transsexual characters or themes. Its narrative focuses on a soldier reliving a train bombing to prevent a future attack, with no elements related to transgender identity or experiences.

The film does not feature any female characters engaging in direct physical combat. The primary female characters, Christina Warren and Captain Colleen Goodwin, do not participate in any fight scenes.

Source Code is an original film with characters created specifically for this production. There is no prior source material, historical record, or previous installment from which characters' genders could have been established and subsequently changed.

Source Code is an original film with no prior source material, historical figures, or previous adaptations. Therefore, its characters have no pre-established race to be swapped from.