"[10] In an effort to heavily promote Goblet of Fire, Warner Bros. sent Leung to China in the film's second week of release, in an atypical move towards a market that was not used to frequent celebrity visits at the time.

While Leung was greeted warmly by most of the fandom, other fans created hate websites in response to her casting and posted many racist messages which were upsetting to her at the time.

[12][13] In March 2021, Leung opened up further about the racist harassment she received from fans while filming Harry Potter; appearing on an episode of the Chinese Chippy Girl podcast, she revealed that she was told by her publicists to deny what was happening if any interviewer asked.

[15] In July 2007, she was cast by Gold Label Records, a subsidiary of EMI in Hong Kong, to be the female lead in the music video Love Coming Home (愛回家) by Leo Ku.

[16] In her first role outside of Harry Potter, Leung played Hsui Tai in the episode "Cat Among the Pigeons" of ITV1's Agatha Christie's Poirot, which premiered on 21 September 2008.

[17] Following the end of Harry Potter, Leung was uncertain if she wanted to further pursue a career in acting but was inspired to continue after attending a drama course at the Royal Conservatoire of Scotland.

"[20] The play made its world premiere in Cambridge, Massachusetts in February 2012, before returning to Motherwell and concluding with an April–May run at the Young Vic in London.

[21][22] In June 2012, it was confirmed that Leung would star in the Channel 4 four-part drama series Run as leading character Ying, an undocumented Chinese immigrant living in Brixton.

[24] In April 2014, it was announced that Leung was to play the lead role of Mei, a first-born Chinese girl adopted by an American mother and British father, in the TV miniseries One Child.

[26] In late 2016, Leung appeared in the Tony Kushner play The Intelligent Homosexual's Guide to Capitalism and Socialism with a Key to the Scriptures (iHo) at the Hampstead Theatre in London.