"Superbad" is rated R primarily for its strong sexual content, crude humor, and pervasive language. The film features numerous instances of sexual references, discussions about sexual experiences, and explicit language throughout its dialogue. Additionally, it includes underage drinking and drug use, which contribute to the mature themes and overall tone of the movie. The combination of these elements makes it unsuitable for younger audiences, hence the R rating.

In the movie "Superbad," Seth does not sleep with Jules. Throughout the film, Seth, played by Jonah Hill, has a crush on Jules, portrayed by Emma Stone, and he hopes to connect with her. However, their relationship does not progress to a sexual encounter. Instead, the film focuses on Seth and his best friend Evan's comedic misadventures as they navigate their final days of high school and the complexities of teenage relationships. The film ends with Seth and Evan solidifying their friendship rather than focusing on romantic outcomes.

As of October 2023, "Superbad" is not available on Netflix. However, availability can vary by region and change frequently, so it's best to check your local Netflix catalog. You can also find "Superbad" on other streaming platforms like Hulu or Amazon Prime Video, where it might be available for rental or purchase. Always verify the latest streaming options for the most accurate information.

"Superbad," released in 2007, is widely regarded as a good movie, particularly in the teen comedy genre. Directed by Greg Mottola and produced by Judd Apatow, it features a strong script by Seth Rogen and Evan Goldberg, focusing on friendship, adolescence, and the quest for acceptance. The performances of Jonah Hill and Michael Cera, along with memorable supporting characters, contributed to its success. The film's humor, relatable themes, and nostalgic elements have earned it a cult following, making it a significant entry in modern comedies.