Longworth writes, hosts and produces the podcast You Must Remember This, about the "secret and/or forgotten histories of Hollywood's first century".
Longworth received a Bachelor of Fine Arts in Film from the San Francisco Art Institute and a Master of Arts in Cinema Studies.
She is one of the founders of the film culture blog Cinematical and formerly edited both Cinematical and the film blog SpoutBlog and, while living in New York, was heard regularly on the Public Radio International show The Takeaway. From 2010–2012, she was the Film Editor and lead critic at LA Weekly.
Longworth has contributed to numerous magazines, including New York Magazine, Filmmaker, Time Out New York, Cineaste, and Las Vegas Weekly, as well as the online publications Slate, indieWIRE, The Daily Beast, The Huffington Post, The Village Voice, and Vanity Fair's Little Gold Men blog.
Internet film criticism vs. print film criticism
When she was still a web critic for SpoutBlog, Longworth appeared in the documentary For the Love of Movies: The Story of American Film Criticism, explaining the virtues of blogging – for creating a back-and-forth dialogue with readers. About blogging she went on to say, "I have a Master's Degree in Film Studies, but I’m no more qualified to blog than a high school student in Vermont." The New York Times has called Longworth "freakishly smart", and Variety said, "... it's the ever-proliferating bloggers – Spout, Cinematical, Movie City News and Hollywood Elsewhere – that have become the instant barometers for how a film plays."
In 2007, Variety said, "As the pool of well-paid print critics shrinks in size, the next generation of film fans may come to trust critic/bloggers like … Spout's Karina Longworth, who helped to create the major film blog Cinematical". The New York Times has commented, "Are print critics really so all-important and sacrosanct with the Web full of debates about all manner of film in places like indiewire.com, cinematical.com and blog.spout.com?"
You Must Remember This podcast
In April 2014, Longworth launched You Must Remember This, a podcast that covers lesser-known Hollywood stories from the early- to mid-twentieth century. Distributed by the Panoply network in association with Slate Magazine, there have been 189 episodes so far, all written and narrated by Longworth. It has become one of the top film podcasts; the Washington Post called it "knowledgeable and laceratingly funny". Podcast Magazine gave the show five out of five mics. The show won the 2016 award for "TV & Film" at the Academy of Podcasters Awards and was a finalist in the 2017.
- The Portable SpoutBlog: Rants, reviews and reports from the film blog edited by Karina Longworth (2009), ISBN 1448695716
- Masters of Cinema: George Lucas (2012), ISBN 2866429044
- Al Pacino: Anatomy of an Actor (2013), ISBN 0714866644
- Meryl Streep: Anatomy of an Actor (2014), ISBN 0714866695
- Hollywood Frame By Frame: The Unseen Silver Screen in Contact Sheets, 1951-1977 (2014), ISBN 1616892595
- Seduction: Sex, Lies, and Stardom in Howard Hughes's Hollywood (2018), ISBN 0062440519
- Longworth, Karina, ed. (2009). The Portable SpoutBlog. CreateSpace. ISBN 978-1-4486-9571-3.
- Means, Sean P. (October 13, 2009). "Is Karina Longworth a film journalist?". The Salt Lake Tribune. Archived from the original on July 16, 2011. Retrieved September 13, 2018.
- Roderick, Kevin (December 23, 2009). "LA Weekly adds film editor, reporter". LA Observed. Retrieved September 13, 2018.
- "Film Criticism in the Age of the Internet: A Critical Symposium". Cineaste. Vol. XXXIII, no. 4. 2008. Archived from the original on October 26, 2010. Retrieved September 13, 2018.
- Rocchi, James (March 22, 2008). "The Rocchi Review – With Karina Longworth of SpoutBlog!". Moviefone. Archived from the original on June 12, 2012. Retrieved September 13, 2018.
- "Karina Longworth Film Contributor". The Takeaway. November 25, 2009. Archived from the original on July 25, 2011. Retrieved September 13, 2018.
- Simon, Scott (January 29, 2011). "A Flutter Over Films At Sundance". National Public Radio. Retrieved September 13, 2018.
- Macaulay, Scott (December 22, 2008). "Filmmaker year in review: Karina Longworth". Filmmaker. Retrieved September 13, 2018.
- "Karina Longworth". Las Vegas Weekly. Retrieved September 13, 2018.
- Longworth, Karina (January 3, 2011). "The Movie Club". Slate. Archived from the original on January 7, 2011. Retrieved September 13, 2018.
- "Karina Longworth". IndieWire. Archived from the original on March 6, 2011. Retrieved September 13, 2018.
- "Karina Longworth". The Huffington Post. Retrieved September 13, 2018.
- "For the Love of Movies: The Story of American Film Criticism Acting Credits". Movies & TV Dept. The New York Times. 2012. Archived from the original on November 4, 2012.
- "The Bagger in LA: Post-Game Pyrotechnics". The New York Times. January 13, 2009. Archived from the original on January 21, 2009. Retrieved September 13, 2018.
- Jones, Michael; Miller, Winter (January 25, 2008). "Blogosphere taps festival buzz". Variety. Retrieved September 13, 2018.
- Thompson, Anne (June 21, 2007). "Indie films crave great reviews". Variety. Retrieved September 13, 2018.
- Carr, David (April 1, 2008). "Now on the Endangered Species List: Movie Critics in Print". The New York Times. Retrieved September 13, 2018.
- Walker, Tim (October 15, 2015). "You Must Remember This: Podcast reveals the secret history of 20th century Hollywood". The Independent. Retrieved September 13, 2018.
- Klimek, Chris (June 26, 2015). "A shallow, gossipy perspective of 'Audrey and Bill'". The Washington Post. Retrieved September 13, 2018.
- Actis, Rob (March 2, 2020). "Under the Radar: You Must Remember This Podcast" (PDF). Podcast Magazine. p. 114. Archived (PDF) from the original on December 13, 2021. Retrieved January 31, 2022.
- "2017 Finalist". Academy of Podcasters. Podcast Movement. August 23, 2017. Archived from the original on February 5, 2019.
- "Academy of Podcasters: Past Winners". Academy of Podcasters. Podcast Movement. Archived from the original on October 3, 2017.
- "Karina Longworth on Instagram: "We got married."". Instagram. Archived from the original on December 24, 2021. Retrieved October 30, 2019.