Seyfried: Meryl Streep Made Me Forget My Nerves

Amanda Seyfried shared her positive experiences working alongside Meryl Streep, particularly during the filming of the 2008 musical Mamma Mia!. Speaking at the Hamptons International Film Festival on October 4, 2026, Seyfried recounted how Streep's relaxed and authentic demeanor helped ease any potential nerves. Seyfried described Streep as "super chill" and honest in her performances, making it easy for other actors to feel comfortable.

The actress admitted that while she initially believed she had "no chance" of securing her role as Sophie, she felt fortunate to be cast. Seyfried's connection with Gary Goetzman, a producer at Playtone, played a significant role in her audition process. She also mentioned that being sent to watch the Mamma Mia! show in Las Vegas before filming was part of the preparation. Seyfried and Streep later collaborated again in the 2018 sequel.