There’s a sort of princess with a necklace that makes ppl give you whatever you want, and somehow she loses it and it falls into the hands of a teenage boy. His sister finds it and realizes what it does so she steals it to go shopping and get stuff for free. There’s also an old man in a cave, I think in the beginning of the movie who writes down in his book the present, and also what’s about to happen in the future (I think)

I watched this movie when I was younger, maybe 8-9 years ago on TV, in color. It was with real people but for some reason there was 2 people made of rock (a dad and a son). I don’t remember the connection to the plot.