Rated R movies are films that have been assigned a rating by the Motion Picture Association (MPA) indicating that they contain material suitable for adults. This rating typically includes strong language, intense violence, sexual content, or drug use. Viewers under 17 years old require an accompanying parent or guardian to watch these films in theaters. The R rating serves to inform audiences about the content, allowing them to make informed choices. Many popular films, including action movies, horror films, and dramas, fall into this category, appealing to mature audiences seeking more complex themes and storytelling.