Hollywood actress Liv Tyler was shocked when two young children believed she actually was her regal Lord Of The Rings character. The 29-year-old stars as elf princess ARWEN in director Peter Jackson's fantasy trilogy, and is proud her performances have proved so to convincing to kids. She says, "My husband and I were sleeping and I woke to the sound of our friend's two little boys going around the bedrooms opening the doors and looking in. "When they got to our door, one little boy went to open it and the other said, 'No! Don't open that door. The princess is sleeping in there.' It made my heart leap out of my chest."