I remember this kids movie and the only details I can think of are the kids (a girl and boy I think) go to stay (maybe are adopted?) in this large mansion and there are all these fun rooms they are allowed in, but they are forbidden to go into one. Curiousity kills the cat and either the girl dreams or does enter the room and there is a carousel and candy?? That’s all I got and for the life of me can’t figure out where I saw this.