Why didn't he give Sam the antidote?
In I Am Legend (2007), Robert and Sam get ambushed and Sam ends up getting bitten by the zombie dogs. Since dogs are only immune to the airborne version, Sam got infected. Robert takes Sam back to his lab where he ends up killing her after she turns.
Why not give Sam the antidote? He saw clearly that the rat had shown signs of regression or that the virus was no longer dominant. There wasn't any reason (that I could see at least) to not give Sam the antidote. The human subject was still alive at that point as well.
Best Answer
He did give Sam the antidote, it just doesn't appear to have worked. The clip below has him putting out a syringe and injecting Sam, but her turning and becoming agressive anyways (hence Robert strangling her, so that she doesn't become a vampire).
Presumably she was too far gone into the infection, or the compound wasn't that effective, or something; but he did try.
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How did Sam get infected in I Am Legend?
Eventually, the beam thinned enough for the infected dogs to cross and attack. Neville and Sam were able to fend off and eventually kill the dogs, but Sam was bitten and infected while doing so.Who laid the trap in I Am Legend?
Yes. I completely agree with your answer. I just watched the film and right next to Fred, a trap is set for Neville (in which he gets caught). So the zombies were most probably observing Fred and Neville and setup the trap for him.What is the liquid he sprays in I Am Legend?
What it was was most likely vinegar, ammonia, gasoline or something else packing a stench to cover Neville's odor.Why was I Am Legend ending changed?
Unfortunately, as revealed by I Am Legend director Francis Lawrence, the reason the ending was changed to the happier one seen in theaters is due to intensely negative reactions to the ending where Neville has his villainous realization from test audiences.Why Didn't You Stop Me?
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