Kate Winslet breaks down her 'Steve Jobs' transformation

By now, we're used to seeing Kate Winslet completely disappear into her characters.

But in Steve Jobs, the Oscar winner undergoes her biggest physical transformation since playing Jim Carrey's blue-haired ex in Eternal Sunshine of the Spotless Mind. As Macintosh marketing chief Joanna Hoffman, Winslet dons a brunette wig, oversized glasses and dowdy, era-appropriate attire (the film is set at three product launches, in 1984, '88 and '98).

So did Winslet have a favorite look? Talking to USA TODAY at the New York Film Festival, the actress said she can't choose.

"To be honest, I loved them all and it was fantastic. I look so different from the way I do anyway in life, but also I look so different in each of those periods: '84 is very different from '88, and then from '88 to '98. The '88 to '98 jump was almost, I felt, the biggest, because she goes from kind of hip '80s, to suddenly feeling older and much more like a mother, actually. I wanted her to feel that way in the third act because I think her behavior toward Steve is at its most maternal in Act 3 and it just made sense to me that we should age her in her clothes and her hair, and that it be very particular. But it was lovely to be so involved in the hair and makeup, and in the costume design, much more so than I normally get to be. " 

Spotty Polish accent aside, we think she does a pretty convincing job of embodying the real-life Joanna Hoffman:

We know her Steve Jobs co-star Michael Fassbender is all but guaranteed an Oscar nomination for playing the late Apple co-founder — might Winslet follow suit? You can judge for yourself if you see the tech drama, now playing in New York and Los Angeles (expanding nationwide Oct. 23).