Dragon fruit - a fruit from the fairy tale!

Snow White and 7 Dwarfs - my all-time favourite fairy tale, and from my mother's stories - she used to play "Blanche Neige" in her old-time school, I always wait with excitement for any movie version based on this story. Not long ago I saw "Mirror, Mirror" with Julia Roberts on HBO. I suddenly noticed one detail - the "dragon fruit" was one of the ingredients for the Queen's potion. I still saw this fruit in another Hollywood fairy-tale movie. So a sudden idea crossed my mind - why don't we talk about this "fairy tale" dragon fruit?

                 Red dragon fruit but to us the name "Thanh Long" means blue dragon!