I Am Legend Alternative Ending

It was big news that I Am Legend went through a series of reshoots. One of the big changes was the film's ending, which was reshot to give the film a more commercial conclusion. The special edition DVD hits store shelves on March 18th, and the alternative ending has been leaked onto YouTube.

I'd be interested to hear what you guys think, so please post your thoughts in the comments. I feel that this is a much better conclusion, aside from the voiceover driving sequence which book ends the footage. Also, can anyone please explain to me how they drove out of Manhattan if all the bridges were destroyed... Am I missing something? It's also worth noting that a few seconds of this alternative ending was included in one of the early trailers. I was really weirded out when I didn't see it on the screen in December, as it seemed like a rather creepy sequence.

Discuss: What did you think of the I Am Legend Alternative ending? Would you have preferred it over the theatrical finale?