Structure is probably the most important thing to crack in a screenplay.
Once structure is in place, the details can be kneaded like dough (and on most screenplays, are, even if (and this is rare) the rewrites are done by the same writer).
Dialogue usually comes last and is the most malleable element. On action films, dialogue is largely expository although this can be be done artfully and entertainingly. Personally, I think all the Brosnan films needed more expository dialogue if only to place the threat of the caper into context and understand the danger.
On other films, dialogue has other functions. Character, plot, feeling, nuance and on the best action films, the dialogue serves this purpose too.
I think Goldfinger is the best structured and plotted screenplay and visually the most accomplished. It is also very economical.
OHMSS has a masterful script and dialogue but could have tighter - some of the action distracts from the plot. After Goldfinger, I would say this is the best script.
I agree Diamonds has wonderful dialogue.
Octopussy has a wonderful plot expertly realized and exposited visually.
I think the last Bonds have actually been more writers' films than most Bonds. There are attempts at internal character arcs and nice character and plot references. Additionally, the films have been based around the writing. By this I mean that say in the 1970's, the films were seemingly more based around the locations. Now, if the plot demands they go to Siberia, Saigon or Kazakstan, the production creates this reality rather than change the script to accomodate where they can go. Also, if an action sequence is written, it seems they are now trying to use the technology available (however flawed) to realize that rather than film what they can actually do.
Originality is something I also give credit for. Within the filmic universe of Bond, to come up with something original yet Bondian is very hard. Anyone who has tried to write their own Bond stories will agree with me.
A simple exercise is to visualize a simple sequence.
Say, Bond getting a microdot of Middle Eastern terrorist safe houses in Europe.
Write a 10 line summary of the scene.
Make it simple yet original, visually stimulating, filmable and intriguing.
I am not what you would call a professional screenwriter but I did sell a feature script at Cannes a few years ago and am actively producing feature films. I have written readers reports and plough my way through a lot of the scripts that get sent to me. I've also read all the basic screenwriting texts and know one thing:
NOBODY KNOWS ANYTHING*
*William GoldmanACE
Edited by ACE, 01 December 2005 - 08:25 PM.