im sure 30 minutes isnt anything unusual for MGS, some of the cut scenes on MGS2 (never played 3) were very long. as for them being interactive, i think that basically means the way you could move the camera around slightly with the analog.
The way they dont cut to FMV always makes it a little more immersive to me, you know at any second that control could return to the pad, with FMV you pretty much know are watching a pre recorded part until it stops and returns to game graphics.







