Originally Posted by roach
One thing I noticed is that he isn't as invulnerable as we are used to…in the Smallville fight scene he dodges gunfire from the planes.
He is invulnerable though. There is this one scene where Superman was hit by a bullet and isn't hurt by it. The only difference is that Zack added some "realism" by having him be affected by the physics of the bullet. So what you see is the recoil effect.