Should the latest Dune movies have been shown as one picture?

I've seen both of the current Dune movies,and I generally liked them .They are the best adaptation of the novel to date,though I acknowledge that is not a high bar to get over.But something occured to me as I watched both films:in an artistic sense,it would have been better if they would have done a Gone w/The Wind,shot both films at once,and had one showing with an intermission.I think that would have made the movies flow a lot better.On the other hand,there could be some serious problems with marketing a movie in that manner to a modern audience.Your thoughts?