It has
been reported that Tom Felton and Evanna Lynch will headline the Greek
Half-Blood Prince premiere on Tuesday, August 25th at the Mall's Village Cinema in Athens. The two actors will greet fans at 6:00p.m. local time; the premiere itself will start at 9:00p.m. A poster announcing the premiere can be seen
below:
UPDATE: It has been confirmed that both actors will definitely be present at the event and will indeed be promoting the film in the country for a few days, participating in interviews and press junkets.