Based on the provided movie details and the absence of any additional information regarding its plot or characters, it is not possible to assess the portrayal of LGBTQ+ themes or individuals in 'US, 2016'.

Insufficient information is available to assess the film's portrayal of transsexual characters or themes. Without plot details or character descriptions, it is impossible to determine their presence or the nature of any depiction.

The movie does not contain any action or adventure elements.

There is no information provided regarding any source material, previous adaptations, or historical figures associated with the film 'US, 2016'. Without knowledge of pre-existing characters or their established genders, it is impossible to determine if a gender swap has occurred.

The film 'US' (2016) is an original short film, not an adaptation or reboot of pre-existing material. Its characters were created for this specific production, meaning there is no prior canonical race to have been altered.