His short story, Air Raid is amazing. I wish you had read that first and not seen Millenium.

As a film, probably it needed to be 20 minutes long and that was the problem.

Outside of the odd anthology series, a film really need to, in general, be at least 90 minutes for commercial viability.

The same thing goes on with non-fiction books. Yes, you can have magazine articles but a published book needs to be a good 250 pages.