Wright, 19, plays Ron Weasley's sister Ginny in the Harry Potter films. Bower, 21, played the vampire Caius in The Twilight Saga: New Moon. They will appear together in the upcoming Harry Potter and the Deathly Hallows, coming in November -- in which Bower portrays Gellert Grindelwald.
Wright confirmed to PEOPLE in February that the pair had been dating for about six months. "It's not like we kept it a secret intentionally, but we didn't go around telling everyone either," she said.
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