The Road

Genre: Adventure, Drama, Sci-Fi, Thriller

Plot: A post-apocalyptic tale of a man and his son trying to survive by any means possible.

(Source from IMDB)

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The Road starring Viggo Mortensen, Guy Pearce and Charlize Theron. Nice trailer.
IMDB had rate it at 8.5 by the users. I think the rate is quite high, and may be it is another great movie which I may catch up soon too.
It's about the father and son to get survive at the world's end. And the father will do anything to protect his son.