Rooney Maraseemingly had her own nightmare to endure on the set ofA Nightmare on Elm Street.

It wasn’t until working with directorDavid Fincheron 2011’sThe Girl with the Dragon Tattoothat her perspective changed.

“I have to be careful with what I say and how I talk about it.

A NIGHTMARE ON ELM STREET (2010) ROONEY MARA as Nancy

Rooney Mara appears as Nancy in 2010’s ‘A Nightmare on Elm Street.'.New Line / Warner Bros

Mara previously told EW in 2011that she “didn’t really even want” the part.

I definitely got that,'” she said.

So I was very discouraged and disheartened."

“David really took me under his wing.

He became my mentor in a lot of ways,” she recalled.

He constantly was empowering me, which I think really affected the rest of my choices thereafter."

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