Nah, theres a scene at the very end of the film where they are on Coney Island (which I think is an amusement park of some kind) in some recorded footage they took some three weeks prior to the events, and they look out of the window on a ferris wheel, and in the distance you see what looks like a meteor hitting the ocean.
That's the common theory of where the Cloverfield monster actually comes from.
I vaguely remember that the theory was that the thing dropping into the sea is a defunct satellite and that its impact woke up the dormant creature on the ocean floor...
Also, the Cloverfield creepy crawlies are supposed to be parasites living on (and off) Clover...