Based on the absence of provided plot details or character information for 'Lower Saxony under Construction', it is not possible to assess the presence or portrayal of LGBTQ+ characters or themes. Consequently, the film is categorized as N/A for LGBTQ+ depiction.

Based on the provided input, there is no information to indicate the presence of transsexual characters or themes in 'Two Girls Named Smith' (1951), resulting in an N/A rating for portrayal.

The movie does not contain any action or adventure elements.

As a 1951 documentary, "Lower Saxony under Construction" primarily depicts real-world events and people without adapting fictional characters or intentionally altering the gender of established historical figures. Therefore, it does not contain instances of gender swaps.

As a 1951 German documentary about regional construction, the film primarily depicts real people from that historical context. The concept of a 'race swap,' which involves altering the established race of a character or historical figure, does not apply to this type of factual portrayal.