Elaborating on why she views the performance negatively, Seyfried explained: “Singing is more indulgent than acting in some ways.
“I wish I could redo Les Misérables completely because the live singing aspect, I still have nightmares about it,” she said.
The actor played Cosette in Tom Hooper’s film version of the stage musical, which famously shunned backtracks in favour of the cast singing live on set.
Seyfried is in the running to receive an Oscar nomination for her supporting role in David Fincher’s Netflix drama Mank, which is available to stream now.