Michael Bay
updated his blog reporting about his week of shooting the movie out at Hollaman Air Force base in New Mexico. He described how its hot, its hard, but that they have over 250 shots already completed.
He also indicated that the script drifts reported about online are about 4 months old. This indicates the spoilers in them are accurate. Also indicates that its highly unlikely that the major action sequence in those scripts have changed that dramatically except in cases to reduce costs so if read about the drafts, consider yourself spoiled unless something is revealed to the contrary.
Reason I say the action sequences have not changed much is pre-prep. They have storyboards to develop and approve. The animatics to create. Designs of the TFs, the hardware, costume, sets to build, sites to scout. The FX team then has to prep what they need to get during filming, as do the stunt coordinators. Basically this is months of work so certain aspects of the script get locked down early out of necessity. Its easy to modify lines and what not, especially if all blue screen but can't do that if its practical effects being performed at a location shoot.
Not saying that the scenes as described will not change at all just that they will only be slightly modified or removed rather then being completely redone (as all the pre-prep would need to be redone as a result). That will probably be the next break through in CGI tech, when it gets so cheap that directors can change entire sequences on the fly just like they currently do with actors. No pre-prep or planning needed.
