Nicole Kidman: It's strange shooting CGI

Nicole Kidman feels "grateful" when she gets to act opposite a live person.

The film star has been involved in several movies featuring CGI throughout her career, most recently Paddington. Although they are visually appealing, they can be tricky to make.

"[I've not done one] like this [before]," she told BBC Radio 1. "This was really... you're acting opposite a stick with a red hat on it until you see the movie and then you're just completely... I was gobsmacked at how adorable he is. They'd shown me an image of the bear, so I'd already seen how cute he was going to be, but to see him come to life and all the little nuances, I was amazed.

"That's how it goes these days. You're grateful these days when you get to act opposite an actor."

Nicole also chatted about how she manages when making a movie, especially one which features day and night scenes. Those can mean working at all hours for continuity purposes, so she isn't above delving into the on-set catering.

"I do go in there and raid the catering truck sometimes, because you work weird hours on a movie. Sometimes you're starting at 3pm and you're finishing at 3am so everything always feels a bit sort of twilight zoney," she laughed.

The 47-year-old star has appeared in many huge films, such as Moulin Rouge!, The Hours and Cold Mountain. Her back catalogue is varied so there isn't one set thing her fans shout when they see her on the street. Instead they are usually astounded to have come face to face with her, which Nicole finds hard to handle.

"Sometimes people will go, 'Are you Nicole Kidman?' It's almost a weird thing, I whisper, 'Yes,' or nod. I get a bit awkward. I'm not a big extrovert, I'm an introvert. I'm shy, what can I say," she explained.