'It was one of those vanity credits': Amanda Seyfried didn't know she was an executive producer on The Housemaid

The Housemaid star Amanda Seyfried didn't know she was an executive producer on the movie - until three weeks into filming.

The 40-year-old actress was stunned to see a call sheet with her name listed as "executive producer", and she was later told it was a position her agent had negotiated.

Speaking about her production credit on the film, she said on The Graham Norton Show: "I’m a producer on it and I didn’t know until three weeks in.

"I saw the call sheet and I was like, ‘Executive producer? I didn’t sign up for that.’

"I called one of the producers and was like, ‘You guys have me on as an executive producer.’

"And he was like, ‘That’s what your agent negotiated.’

"And I was like, ‘Well this really better be a hit then.' "

But Seyfried now believes it was a "vanity credit", because she didn't anything production-wise to make the film.

She added: "It was one of those vanity credits, because I didn’t do s**t to make that movie. I only acted in it.

"That’s the thing about vanity credits. I don’t want people to get it twisted."