Information regarding the plot and characters of the 1939 film 'Malli Pelli' is unavailable. Therefore, it is not possible to determine if LGBTQ+ characters or themes are present or to evaluate their portrayal.

There is insufficient information available about the film 'Malli Pelli, 1939' to assess its portrayal of transsexual characters or themes. The provided details do not include any plot points or character arcs relevant to this evaluation, making it impossible to determine a net impact.

The movie does not contain any action or adventure elements.

Without information on the source material or prior canonical establishment of characters for the 1939 film "Malli Pelli," it is not possible to determine if any character's gender was swapped from a pre-existing portrayal.

There is no available information indicating that "Malli Pelli, 1939" is an adaptation of a prior work with established character races, nor is it identified as a biopic of historical figures whose race was altered. Without a baseline for comparison, a race swap cannot be determined.