Based on the provided input, there is no information available to evaluate the presence or portrayal of LGBTQ+ characters or themes in the film 'Kun elohopea laskee'. Therefore, a specific assessment cannot be made.

The film 'For Richer, For Poorer' does not include any identifiable transsexual characters or themes within its narrative. Consequently, an evaluation of its portrayal of such elements is not applicable.

The movie does not contain any action or adventure elements.

The film "Kun elohopea laskee" is a 1933 documentary about thermometer manufacturing. It does not feature named characters, a narrative plot, or adaptations of existing works, thus precluding any instances of gender swapping.

This 1933 Finnish film lacks any available information or historical context to suggest that a character, canonically or historically established as one race, was portrayed as a different race.