Dakota Johnson pretends to be George Clooney when she makes reservations at restaurants.

The 'Fifty Shades of Grey' star has confessed that because she's still relatively unknown she finds it difficult to get a table at some of Los Angeles' best restaurants and therefore pretends to be making a reservation for the Hollywood legend instead.

She laughed: ''And then I show up and the restaurant is like, 'What name is [your booking] under? And I go, [looks at the floor and mumbles] 'Clooney'. I've never even met him. But he eats a lot of meals: George Clooney is the hungriest man in Hollywood!''

The 25-year-old star admits she's nervous about being thrust into the spotlight when her new film comes out next week but insists she's not impressed by Hollywood as her parents Melanie Griffith and Don Johnson are both actors.

Claiming her parents can't give her advice, she added to the Sunday Telegraph newspaper: ''It's all so different now. When Mum and Dad were at the height of their careers and things were super-crazy and they couldn't leave their houses, there wasn't social media. It was all about autographs. Now everyone's the press. I feel fame is perforated: it can be glorious but it can completely destroy a human too.''