No plot details or character information were provided for the film "小五義大破銅網陣". Consequently, it is impossible to evaluate any potential portrayal of LGBTQ+ characters or themes. The assessment defaults to N/A due to the absence of content for analysis.

Based on the information provided, there is no identifiable depiction of transsexual characters or themes in 'Astro Man' (1968). Therefore, an evaluation of its portrayal is not applicable.

The movie does not contain any action or adventure elements.

The film adapts classic wuxia novels where the core characters, the 'Five Younger Gallants,' are consistently male. The 1968 adaptation portrays these characters, such as Xu Liang and Bai Yunrui, as male, aligning with their established gender in the source material. No canonical male characters are depicted as female, nor vice-versa.

This 1968 Hong Kong wuxia film adapts classical Chinese literature. The characters in such source material are canonically East Asian. There is no evidence or historical record to suggest that any character was portrayed by an actor of a different race than their established canon.