Whoever makes this will have to write an original plot in order for it to even qualify as a movie.
The book has no plot.
Three books over 1500 pages long, and nothing except boring and repetitive sex scenes and endless amounts of banal e-mails.
That's the way I remember two of the books as well. I'd had enough by the time I had read the second one.
Like the other poster says there is no plot. Just how this will work as a film I don't know.
A few years ago I got into reading Martina Cole's books and tonight I watched a film of 'The Take' one of the first books I bought of Martinas's. Throughly enjoyed it!
That worked because it was well written and there was a plot to it. I thought Fifty shades of Grey was poorly written.