Parts of articles from the London Premiere (OOTP)
(July 4, 2007)
Sources:This Is London, Hello Magazine!:

+Co-stars Rupert Grint, 18, who plays Ron Weasley, and Katie Leung, 19, Harry's love interest Cho Chang, really let their hair down, dancing the night away to cheesy music at the bash.

+Showing how they've grown, the Academy's brainy pupil Emma Watson, aka Hermione Granger, and Katie Leung - the teenage wizard's love interest - were also a picture of sophistication as they faced the cameras. Shimmering in a sparkly Lanvin dress accessorised with £2 million of Chopard jewels, Katie bemoaned her lack of love life, however, saying she was "miserably single".