When Cole is delivering the package to the dead girls father, watch Bruce standing slightly out-of-focus behind him. Another guy to the left walks OBVIOUSLY around Bruce to get to the other side of the room!
Could be another perception thing - Malcolm "sees" the guy walk around him, when the guy may well have gone right through him. As has been said before, it seems we are viewing the films events from Malcolm's point of view, if we viewed it from Cole's POV, the movie would not have been because we all would've known he was dead from the start.
Well, Bruce Willis is quite solid if you ask me, however, if the movie producers used the computer to make it look like the man walked through him, it would give up the whole movie. This was no slip-up, and remember-Malcolm can see whatever he desires to see.
Yes, the movie is through Cole's perspective, why do you think we can see other dead people!?! Remember Malcolm can't see other dead people. The reason WE don't know Malcolm is dead is because he is wearing a coat over his wound. I think Cole senses that Malcolm is dead even without seeing the wound.
PeOpLe! The movie is viewed from a third person's point of view; however, the view is AFFECTED by what the people on whom the scene focuses! In the scene where Cole goes to the batroom and afterwards sees the ghost of a lady, we see the ghost because the scene focuses on Cole, and Cole sees the ghost. In this scene, we see the man walking around Bruce simply because Cole doesn't see it and Bruce is the only one who sees it. Bruce only sees what he wants to see, so he sees the ghost waling around him, therefore WE see the ghost walking around him!