Cloverfeild -- Is it true to be true?. Review on Cloverfield Movie

Watching Cloverleaf is like running a marathon for me. A total fast paced movie.. felt as if running ourselves with the camera in hand. The voices seemed so fanatic most of the time. Something that attached the city .. what is it?

A Godzilla ... a demon ... an alien from nowhere... what was it? where did it come from ? why was it never seen before ? Can something like this would have really happened ? The entire screenplay revolves around a group of friends who are bonded with the single situation. Something like every friendship at some magnitude faces. A situation of sticking together

I would have seen this movie thrice to understand few aspects like the script that appears in the last that it is an unedited tape preserved by federal intelligence team... is it true ? The genre of movies like cloverleaf , Catacombs are found to be so true to be true... Can any one tell me if there are any other movies like this ? Watching them is true fun.