In the movie "Nimona," the character of Nimona embodies LGBTQ themes primarily through her fluid identity and defiance of societal norms. Nimona is a shapeshifter, which symbolizes the breaking of traditional boundaries related to gender and identity. Her relationship with Ballister Blackheart also explores themes of acceptance and love in the face of prejudice. The story emphasizes the importance of being true to oneself and embracing diversity, resonating with LGBTQ experiences of self-discovery and the fight for acceptance.

"Nimona" is rated 18+ on Netflix primarily due to its dark themes, violence, and some mature content. The film explores complex issues such as identity, acceptance, and the consequences of societal norms, which may not be suitable for younger audiences. Additionally, it includes action sequences with intense battles and moments that can be frightening or emotionally heavy. The rating ensures that viewers are aware of these elements, allowing parents to make informed decisions about its suitability for children.

Disney initially rejected "Nimona" because it was deemed too unconventional and risky for the studio's family-friendly brand, particularly due to its darker themes and unique animation style. The film, based on the graphic novel by ND Stevenson, features a non-binary protagonist and explores complex ideas about identity and acceptance. After Disney's acquisition of Blue Sky Studios, which had been developing the project, "Nimona" was ultimately picked up by Netflix, allowing it to maintain its creative vision and appeal to a broader audience.

"Nimona," based on the graphic novel by ND Stevenson, is generally considered suitable for older kids and teens. It features themes of friendship, identity, and acceptance, but also includes some darker elements, action scenes, and mild language. The animation style is appealing to younger audiences, but parents should be aware of the film's mature themes and occasional violence. It's advisable for parents to watch it first or read reviews to determine if it's appropriate for their children based on individual maturity levels.