Rose Byrne is an acting chameleonwho has done everything from drama to comedy to horror.

The only thing that soothes her anguished soul?

If you are struggling with an eating disorder, or know someone who is, help is available.

Rose Byrne smiling in Physical

So choosing the right actor to portray Sheila was very important.

So this is someone with the whole palette to offer.

And in this part, she really gets to use all of those colors in the painting."

Rose Byrne on beach in Physical

“It was just a joy to get to work with her,” she says.

“She’s a fearless actress.

She’s a fun and open collaborator.

We just had a great time building this together.”