The actress said she and her co-stars are '100% into' appearing in the upcoming film.
The latest details on the potential involvement of the stars from the original 'Mean Girls' in the upcoming new movie.
The actress played Karen in the 2004 high school comedy.
Renee Rapp chats with ET at the Spotify New Artist Party in Los Angeles.
The actress was forced to cover up her gorgeous gold archival Dior gown with a black jacket.
Amanda Seyfried wins Best Actress in a Limited Series or TV Movie for 'The Dropout' at the 28th Annual Critics Choice Awards.
Amanda Seyfried offered up a few more details regarding last week's mysterious announcement she was working on an unnamed musical.
Amanda Seyfried chats with ET at the 28th Annual Critics Choice Awards, airing Sunday on The CW.
The actress adds a Golden Globe to her growing awards haul for 'The Dropout.'
ET breaks down the highlights from the 2022 Emmys, including Sheryl Lee Ralph’s historic win and Jennifer Coolidge’s chaotic speech.
Sheryl Lee Ralph, Amanda Seyfried and more share style secrets with ET at the 2022 Emmy Awards.
Check out how Hollywood's biggest celebs celebrated their Emmy wins at the star-studded after-parties.
Seyfried's portrayal of Elizabeth Holmes in 'The Dropout' earned the actress her first-ever Emmy.
ET speaks with Amanda Seyfried at Disney’s Emmys party following the 74th Emmy Awards.
