The film 'Behind the Mask: The Rise of Leslie Vernon' does not feature any discernible LGBTQ+ characters or themes. Its narrative is entirely centered on deconstructing the slasher genre, leaving no room for such portrayals within its plot or character arcs.

The film 'Behind the Mask: The Rise of Leslie Vernon' does not feature any identifiable transsexual characters or themes within its narrative. The story focuses on a meta-commentary of the slasher genre, following a prospective serial killer and a documentary crew, without engaging with transgender identity or related issues.

The movie does not contain any action or adventure elements.

This film is an original mockumentary horror movie, not an adaptation or reboot of existing material. All characters, including Leslie Vernon, are original creations for this specific film, thus there are no pre-established characters whose gender could have been swapped.

This film is an original horror mockumentary, not an adaptation of existing source material or a historical biopic. All characters were created for this film, meaning there is no prior canonical or historical race to be swapped.