Bourne Again

It's weird, but I've been in line for movies twice where people talked about The Bourne Ultimatum, the third installment in the Bourne series, about a guy who has amnesia, but is actually a super agent, whose mind has been erased for who-knows-why.

This third installment was directed by Paul Greengrass, who also directed United 93, one of two films that came out last year about the 9/11 tragedy, this one being filmed like a documentary.

It's rare that a third film gets so much praise that people who had basically ignored the series feel compelled to watch it, but word of mouth suggests that is what's happened.

Can anyone think of a film whose third installment might be its best? For most, it's the second (Star Wars), or even the first (The Matrix).

This is also one of many series to appear to have taken the mantle of superspy from James Bond (the other contender would be Mission Impossible, but really?). Is this even a viable genre these days?