Based on available information, "A Real Pain" does not feature explicit LGBTQ+ themes or characters. The narrative centers on familial relationships, Jewish identity, and Holocaust remembrance, indicating that LGBTQ+ representation is absent from the film's core story and character dynamics.

Based on the available information, 'A Real Pain' does not appear to feature identifiable transsexual characters or themes. There are no details suggesting any depiction, positive or negative, of the trans community within the film's narrative.

The movie does not contain any action or adventure elements.

The film "A Real Pain" features original characters, primarily male cousins, and there is no information or indication that any character's gender was swapped from a previously established canonical or historical portrayal.

The film features original characters, primarily focusing on two Jewish American cousins. While the supporting cast includes diverse new characters, there is no indication that any character was previously established as a different race in source material or history and then re-cast.