A famous quote from "This Is Spinal Tap" is, "It's one louder." This line is delivered by guitarist Nigel Tufnel, who explains that his amplifier goes up to 11, implying it's better than the standard maximum of 10. The quote has become iconic, symbolizing the band's over-the-top approach and the film's satirical take on rock music culture. The movie, directed by Rob Reiner, is a mockumentary that follows the fictional British heavy metal band Spinal Tap on their disastrous American tour.

"This Is Spinal Tap" is a parody of rock band documentaries and the music industry, particularly the excesses and absurdities associated with 1980s heavy metal bands. It follows the fictional British band Spinal Tap as they embark on a disastrous tour in the United States, highlighting themes like ego, miscommunication, and the fleeting nature of fame. The film employs a mockumentary style, using humor to critique the clichés and tropes of rock culture, making it a seminal work in both comedy and music cinema.

"This Is Spinal Tap" is available for streaming on platforms like Amazon Prime Video, Apple TV, and Google Play. You can also rent or purchase it from services such as YouTube and Vudu. Availability may vary by region, so it's a good idea to check your local streaming services for access. Additionally, it may be available on DVD or Blu-ray at retailers and libraries.

Yes, the actors in "This Is Spinal Tap" are real musicians. The film features a mock rock band, and the main cast—Christopher Guest, Michael McKean, and Harry Shearer—are all accomplished musicians in addition to their acting skills. They perform the music for the film themselves, showcasing their musical talent through original songs that parody various rock genres. The blend of comedy and musicianship contributes to the film's enduring cult status and impact on both cinema and music.