Amanda Seyfriedrecalls her time onLes Miserablesand saysshe was not quite ready for the challenging role.

The actress played Cosette in the epic period musical film directed by Tom Hooper.

In it, she had to sing live, which she found infuriating.

Amanda Seyfried

Amanda SeyfriedDimitrios Kambouris / Getty Images / Universal Pictures / Courtesy Everett Collection

Les Miswas an incredible movie.

I knew what I had to sing, but they were hard songs.

And the acting part of it came naturally and I loved it.

(L-R) Brandon Sklenar, Amanda Seyfried, Sydney Sweeney, Paul Feig and Adam Fogelson, Chairman, Lionsgate Motion Picture Group promote the upcoming film “The Housemaid” at the Lionsgate presentation during CinemaCon

Its what made that movie f***ing fly.

Watch Seyfrieds full interview below.