The film "Dreamgirls" does not feature any identifiable transsexual characters or themes. Its narrative focuses on the rise and challenges of a female singing group in the 1960s music industry, without engaging with transgender identity or experiences.

The movie does not contain any action or adventure elements.

The film "Dreamgirls" is an adaptation of the 1981 Broadway musical. All major characters in the 2006 movie maintain the same gender as established in the original stage production, with no instances of a character being portrayed as a different gender than their canonical or historically inspired counterpart.

The film is an adaptation of a Broadway musical, loosely based on real-life Black musical acts and figures from the 1960s and 70s. All major characters, whose inspirations were historically Black, are portrayed by Black actors in the film, consistent with the source material.