Leung shot to fame playing the boy wizard's love interest Cho Chang, but she took time out from the film industry to enrol in a course at the University of the Arts London to build on her creative talents.
The actress, who is preparing to star in a London stage adaptation of bestselling novel Wild Swans, is convinced her most famous role has left her pigeon-holed and she is worried her ethnicity may also be affecting her ability to land roles.
She tells Britain's Daily Telegraph, "Potter was such a safe environment. You knew the next film would be round the corner and you would just go back to it. But afterwards I started to wonder if I was picked because I fitted the role physically; and was concerned that the character I played for the film wasn't particularly difficult.
"In general, the auditions I go up for are very sparse, I guess because of my ethnicity. And the characters are very similar: shy, innocent and naive; the connotations that come from the way that I look."