"Annette" is rated R primarily for its explicit content, which includes strong sexual themes, nudity, and graphic depictions of violence. The film features intense and mature subject matter, including a portrayal of a tumultuous relationship, which may not be suitable for younger audiences. Additionally, the film's artistic style and unconventional storytelling may contain elements that are more appropriate for adult viewers. Overall, the rating reflects its complex themes and adult-oriented content.

"Annette" is not based on a true story; it is a fictional musical film directed by Leos Carax. The screenplay was written by Ron and Russell Mael of the band Sparks, who also composed the music. The film tells the story of a stand-up comedian and his opera singer wife, whose lives change dramatically with the birth of their daughter, Annette, who has a unique gift. While the characters and plot are original, the film explores themes of fame, love, and the complexities of relationships.

"Annette" is a musical drama directed by Leos Carax, featuring Adam Driver and Marion Cotillard. It tells the story of a stand-up comedian, Henry, whose life takes a tumultuous turn after he falls in love with a renowned opera singer, Ann. They have a daughter named Annette, who has a unique gift. The film explores themes of love, fame, and the complexities of relationships, set against a surreal and visually striking backdrop. The narrative is driven by original songs by the band Sparks, blending music and storytelling in an unconventional way.

Yes, Marion Cotillard sings in the movie "Annette." She plays the character Ann, a successful opera singer, and her performance includes several musical numbers throughout the film. The movie, directed by Leos Carax, features a unique musical score by the band Sparks, and Cotillard's singing is an integral part of her character's storyline and the overall narrative.