I thought the intention with the proposed film was to treat it as the first in a series by adapting the events up the bit with the two astronauts. While I'm sure it's possible to tell the story in just a two hour film, I don't think it'd do the subject matter much justice. Not that I'm the sort who insists on slavishly adhering to the letter of the source material, quite the contrary in fact; that approach is often detrimental to a project. However there sheer scope of the initial disaster and the long term consequences are bound to get shoved into the background if it's all done in one hit and for me that's where the heart of the story lies; how a civilisation adapts to a world without males.
Perhaps the best balance would be struck with a miniseries? 'The Stand' mini certainly springs to mind as a point of comparison and unlike that story, 'Y The Last Man' actually has a third act!
Of course I think just about every half decent book should be made into a mini series. Hell the first of the three B5 Psi Corps book practically screams "three part miniseries" to me.
Perhaps the best balance would be struck with a miniseries? 'The Stand' mini certainly springs to mind as a point of comparison and unlike that story, 'Y The Last Man' actually has a third act!

Of course I think just about every half decent book should be made into a mini series. Hell the first of the three B5 Psi Corps book practically screams "three part miniseries" to me.