The film 'The Slave Isaura' does not feature any identifiable LGBTQ+ characters or themes. Its narrative is exclusively focused on heterosexual relationships, the institution of slavery, and the pursuit of freedom, resulting in no portrayal of queer identities.

Due to the absence of any plot details or character information for the film 'White Poison', an evaluation of its portrayal of transsexual characters and themes cannot be conducted. Therefore, the net impact is deemed N/A, as no identifiable transgender content was available for analysis.

The movie does not contain any action or adventure elements.

The 1929 film "The Slave Isaura" is an adaptation of the well-known 1875 novel "A Escrava Isaura." There is no historical or critical information indicating that any established characters from the source material had their gender changed in this film adaptation.

The film adapts the novel "A Escrava Isaura," where the titular character is canonically depicted as white or very light-skinned. There is no evidence that the 1929 film adaptation altered this established racial portrayal.