GTA IV Trailer 1 Analysis

Rubbish
This is an image of what looks to be rubbish on the streets. Will this be able to be thrown, kicked or even used as a weapon?

Carrying wood blocks
This is an image of two citizens carrying long wood blocks around a construction area. Will this be able to be thrown or even used as a weapon?

Cable car
Can this cable part next to the bridge transport Niko?

Seagulls
These birds are seen in several shots of the trailer and seem to have a mind of their own. Can we use these birds in missions, hunt them or watch them steal our chips?

Is that Niko?
Is that Niko Bellic standing there still in the trailer? If you watch the trailer again you will see him just stand still while the shot pans away from him.