La Coeur De La Mare - The Necklace from Titanic (which i have!!)
Tia Dalma's Locket - Pirates of the Carribean
Anyanka's Pendant - Buffy the Vampire slayer Tv Series (not a movie, but i have this and i love it!)
Time Turner - Harry Potter and the Prisoner of Azkaban
NOW MY NEXT ITEM I AM GOING TO SUGGEST, I HAVE NEVER EVER SEEN REPLICATED, AND IS PROBABLY ONE OF THE MOST FORGOTTEN NECKLACES EVER
St.Christopher Silver Pendant on a Silver Chain - The Green Mile
--- It JUST occured to me when i was looking at my dvd rack, it's such a small piece, and yet symbolises so much in the movie.