Zero is a movie of love , emotion , drama and must of laughter. A segment of mass is saying that 2nd half is lengthy and lathergic . But I suggest them to feel the situations shown in 2nd half. A dwarf man can launch to the space ( may be for his love ) though it is a challenging matter for him . 2nd half has actually explained the trial relationship and that why it has taken some time. But it was not boring at all , it was really heart touching.
So just go to cinema hall , fall in love and enjoy it.