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So haveGugu Mbatha-Raw,Emma Stone, andPenelope Cruz.

Santa Maria Novella Rosa Gardenia By Kilian Good Girl Gone Bad Dior JAdore Parfum DEau a camera a roll of film and a script

“It just hits you in such a primal, deep place.”

To say scent is “primal” is not hyperbole.

Jessica Chastainalso relies on the technique.

Chanel No 5

To help Jessica Chastain transform intoThe Help’s Celia Foote, a 1960s-era Marilyn Monroe lookalike, Chastain wore Monroe’s favorite perfume, Chanel No. 5.

To play the CIA analyst Maya inZero Dark Thirty,she went with a smoky, mysterious oud.

“Celia Foote [inThe Help] was Chanel No.

Marilyn Monroe only woreChanel No.

Chanel No. 5 perfume bottle with yellow contents on white background

5to bed, so I thought, Oh, this is perfect,” Chastainhas toldAllure.

(Foote bears a striking resemblance to Monroe.)

“Perfume says a lot about you before you even say anything about yourself.”

Burberry for Men perfume bottle with yellow contents on white background

Cafe Rose always made me feel lavish, elegant, and a little bit naughty."

That’s where perfumers come in.

“Honestly, you wouldn’t want to smell it,” she says.

Tom Ford Café Rose brown perfume bottle with gold label on white background

“It’s very personal, the way the molecules react with skin,” she says.

Linney discovered this on the set of the 2016 filmGenius,also starring Jude Law as novelist Thomas Wolfe.

“It was very subtle, so I was like, ‘What is going on?’

Kilian Paris Good Girl Gone Bad perfume bottle with gold cap on white background

My experience being around him, it was visceral.”

“It’s a ghost through your whole body.”

Chanel

Chanel No.