The provided information for the film "{鐵髮紅姑}" does not contain any identifiable LGBTQ+ characters or themes. Therefore, an evaluation of their portrayal cannot be made based on the given input.

Based on the information provided, there are no identifiable transsexual characters or themes present in the film. Consequently, an evaluation of its portrayal of such elements is not applicable.

The movie does not contain any action or adventure elements.

There is no widely established source material or prior adaptation for "The Red-Haired Girl" (1969) that features a character whose gender was changed in this film. The title itself suggests a female protagonist, and no evidence indicates a gender swap from a previously established male character.

No information is available regarding the source material or established character races for the 1969 film "{鐵髮紅姑}". Without prior canon or historical context, it is not possible to identify any instance of a race swap.