Harry Potter star Emma Watson has sparked rumours she is dating Razorlight frontman Johnny Borrell after the pair were photographed out and about in London together. Watson, 17, who plays Hermione Granger in the hit film series, is ten years younger than the America hitmaker - who split from Hollywood actress Kirsten Dunst last year (07). The pair were seen attending the star-studded Vanity Fair and Burberry portraits party together on Monday (11feb08) night, they later moved on to an soiree hosted by fashion label PPQ before getting a taxi back to a private event at the capital's Dorchester Hotel. Watson ended her relationship with rugby player Tom Ducker in November (07) insisting she was shunning romance to concentrate on her schoolwork and blossoming movie career.