Due to the complete lack of plot details, character information, or thematic descriptions for 'Mercy, 2011', it is not possible to evaluate the film's portrayal of LGBTQ+ characters or themes. Therefore, an assessment cannot be made.

Currently, there is not enough information available regarding the film's plot or characters to assess the portrayal of transsexual individuals or themes. Without specific details, it is impossible to determine if such depictions exist or what their nature might be, thus preventing a comprehensive evaluation.

The movie does not contain any action or adventure elements.

The provided information for 'Mercy, 2011' does not include details about any source material, previous adaptations, or historical figures. Without this context, it is impossible to determine if any characters were canonically established as a different gender prior to this film.

There is no information provided regarding source material, prior adaptations, or historical figures for the film "Mercy" (2011). Without established character races from a canon or historical record, it is not possible to determine if a race swap occurred.