Due to a complete lack of accessible information regarding the film 'Dver v leto' and its narrative content, it is impossible to assess its portrayal of LGBTQ+ characters or themes. Therefore, the film is categorized as N/A, indicating no identifiable depiction.

The 1992 film adaptation of Robert A. Heinlein's novel, 'The Door into Summer,' does not feature any identifiable transsexual characters or themes within its narrative. The story focuses on a science fiction plot involving time travel and corporate intrigue, without incorporating elements related to transgender identity, resulting in no depiction.

The movie does not contain any action or adventure elements.

The 1992 film "Dver v leto" is an adaptation of Robert A. Heinlein's novel "The Door into Summer." A review of the main characters and their portrayals indicates that all significant roles maintain the same gender as established in the original source material. No instances of gender swapping were identified.

The film is a Russian adaptation of Robert A. Heinlein's novel "The Door into Summer." The main characters, including Daniel Boone Davis, Belle Darkin, and Ricky, are portrayed by white actors, which aligns with their implied race in the original source material. No instances of race swapping were identified.