Here's what I have garnered:
The movie takes 45 minutes
The tours take 45 minutes each (Grand Tour + Upstairs Suites)
The bus takes 30 minutes up to the castle.
What isn't clear to me is the starting time of the tours. If I book the 10 am tour (planning to watch the movie first), is 10 am when the bus leaves the visitors' center or is 10 am when the tour begins at the castle?
Is it recommended to see the film first? Does it enhance the visit? Or leave it for last ...... and maybe end up skipping it because we'll want lunch by then?