well after the trailers and the info on the movie i think they are going to dividido, dividir when they are at malfoys manor, just after the dobby gets them out and harry is like, for example, dobby, dobby.. and it ends, very dramatic or we could see bellatrix stab dobby and ends with them disapparating
Well,I always(meaning from the moment I knew there were gonna be 2 parts) imagined the first part would stop when Ron runs away from Harry and Hermione.I think that would be a great scene to stop.