I just had a thought. If Raimi is going to try to keep Sandman as physically possible as he can, that means no massive city block covering sandstorms. There is only so much mass Sandman would have to work with, i.e. the volume that a (let's say) 225 lbs man would displace. Now sand can only be compacted so far, and even at it's maximum density, it would not provide enough material for Sandman to completely bury Spiderman and have enough left over to create an upper torso with limbs and a head, much less weapons on his arms with sufficient density to cause any real harm. The only way to explain any kind of mass gained would be that he is drawing mass from an extra-dimensional source, which is kinda wiggy. That or he has the ability to mentally control sand, again kind of out there. I am kind of expecting a lot of very creative uses for the mass he's got, and not so much Mummy-esqe sand storms and what not. My other concern is that sand stone is one of the weaker materials out there and if Sandman were to make himself as dense as possible, a superhuman at the level of Spiderman would have little trouble just punching a chunk clean off him (heck a normal human with a sledge could do it) I hypothesize that they will introduce some sort of "super sand". A substance that can increase and decrease it's physical size at a molecular level and yet maintain it's integrity. Also, it is a much more structured crystalline body, allowing it to be compacted into a solid form with much higher physical resistance than regular sand. Why anyone would make something like that is beyond me, but it kind of solve the problems. What do you guys think?