The film 'Limitless' does not feature any identifiable LGBTQ+ characters or themes. The narrative focuses entirely on heterosexual relationships and the protagonist's personal and professional journey with a nootropic drug, resulting in no depiction of queer identity within the story.

The film "Limitless" does not feature any identifiable transsexual characters or themes. Its narrative focuses on a man who gains enhanced cognitive abilities through a nootropic drug, exploring themes of ambition, power, and the consequences of unchecked potential, without engaging with transgender identity.

The movie does not contain any action or adventure elements.

The film "Limitless" (2011) is an adaptation of the novel "The Dark Fields." A review of its main characters against their novel counterparts reveals no instances where a character's established gender was changed for the screen.

The film "Limitless" is an adaptation of the novel "The Dark Fields." All major characters, including Eddie Morra, Lindy, and Carl Van Loon, are portrayed by actors whose race aligns with the implied or described race of their counterparts in the source material. No character canonically established as one race was portrayed as a different race.