Casting includes diverse actors like Diego Calva as a Mexican immigrant rising through the ranks, Jovan Adepo as Black jazz trumpeter Sidney Palmer facing era-appropriate racism (e.g., a humiliating blackface moment to appear 'darker' on film), and Li Jun Li as queer Asian performer Lady Fay Zhu, who has a flirtatious moment with Margot Robbie's character. These elements add texture to the period's inclusivity in wild parties and sets but remain incidental subplots, not central drivers of the premise, character arcs, or emotional core.

There are no overt lectures on systemic oppression, identity politics, or critiques of traditional norms; race and queerness are touched lightly amid the debauchery. Creator Damien Chazelle emphasizes it as an ode to cinema's enduring magic, with no stated activist intent.

Audience reception was polarizing due to excess, length, and nihilism, not wokeness, and a niche critique noted underrepresentation of Jewish Hollywood founders, but this does not indicate progressive centrality. The film prioritizes unbridled storytelling and spectacle, steering clear of contemporary social justice activism.