World War 'Z'  should've been World War 'Y'?

Rating: 5/10 (10 July 2013)

A movie for me, most of the times is either good or bad or somewhere in between. Very few movies evoke a response like, Why? Though I have been contemplating writing a review  a friend suggested I should write one if I completely wanna crash it.
Now we all know that World War Z stands for a future war to prevent extinction of mankind and 'Z' for the obvious reasons meaning Zombie. But coming back to my point why World War Z should have been called World War 'Y'  Lots of 'Why' in my head after the watching this Brad Pitt Production.
'Y' did Brad Pitt produce such a movie especially after the his last highly acclaimed production Moneyball?
'Y' did Brad Pitt act in such a movie?
'Y' did the World War Z happen and how did the zombies come about spreading like an epidemic?
'Y' on earth the zombies or the "UNDEAD" who are on a mad warpath totally able to annihilate some of the finest armies of the world?
'Y' is there a sermon by some scientist about mother nature being a serial killer and some other philosophical bullshit which virtually has no context to what is happening?
'Y' does Brad Pitt manage to keep his cool and look hot 'n' sexy despite being in a life ending accident, mauled by Zombies, surviving a sure- shot death air crash and still be the only one to come with answers?
'Y' most importantly when we have so many uber-cool villains, technologically advanced aliens and our home grown vices did the production team had to depend on a 1980s lame formula of introducing funny faced Zombies to end our existence? Surely, we as a race deserve a more worthy nemesis.
'Y' could not the movie start with a much stylish origin and end with the good guys winning  it is just horrifying to think that they might be cooking up a sequel to it.
'Y' was the climax (like a friend suggested) straight out of Michael Jackson's thriller video and the audience couldn't help but laugh even in such a grave situation?
'Y' . ?
Just look out for Brad Pitt in the movie  oh wait  there is no one else you'll see so don't worry about it.
The flip side to it is, spend 116 minutes in an AC cinema hall in this sweltering heat and enjoy the 3-D effects if you must.