I wanted to be a musical theatre actress - I wanted to play Sally Bowles, forever and ever always.

I didn't work for a year after Wall Street. I finished that in November, and then it was the following October that I did Drive, so I took a year off. I didn't do anything at all, really. I just hung around.

The toughest part of acting is never a single thing. It's more like a whole character. I find film really difficult - trying to make it feel like a consistent character when you're filming everything out of order.

It was my dream for years... to train. Dominic [Cooper] went and he's doing alright. But some people don't go and do brilliantly. Although I think there are things I missed from not having trained. I think I'd be more confident on stage had I gone because I think it means you're equipped with better vocal training and things like that.

The minute I get into a hotel room, I scatter my stuff everywhere. It's like a bomb site within a minute. So I suppose that means I'm trying to nest.

I was quite straight-laced. I was quite academic until I was about 14 and then I went to boarding school where I had the opportunity to continue to be very academic, but got less interested in it and became more involved in acting. And then when I was applying for universities I used a couple of places on my UCAS form to apply for drama school without telling anyone... but didn't get into drama school. But that was the most rebellious thing I did.

Those with dementia are still people and they still have stories and they still have character and they're all individuals and they're all unique. And they just need to be interacted with on a human level.