When did the frontrunners fall?

2010. The Social Network is poised to win the PGA. But in a sudden upset, it loses to The King's Speech. Every year brings out the big upsets, and this year is no exception.

Argo- It fell right after the Oscar nominations were announced... and then something miraculous happened. Globes, SAG, PGA, and soon-to-be PGA and BAFTA. That was the second fall.
The first fall for Argo was the sudden buzz for Les Miserables. The Academy screening that garnered praise more overblown than Elizabeth Banks' Hunger Games hairdo.

Les Miserables- Mixed critical reception. 'nuff said.

Zero Dark Thirty- The film that should win Best Picture will not because of torture controversy that is fortunately falling apart right before the Oscars. Also, the lack of a SAG nomination was a bad sign right from the beginning.

Lincoln- The lack of a BAFTA best director nom was ignored because Lincoln nabbed the most total noms at the ceremony. It's getting the nominations, but not the wins.

The Master- PT Anderson's revenge, a film riddled with hype and attention all summer. I don't know how it fell so quickly. Bad box office, I guess.

Silver Linings Playbook- Fell out of the conversation a little bit due to the expansion-release-style. It was all part of Weinstein's plan, the film did nab four acting nominations, so the fall was almost intentional.

And when fall, one must rise. Ergo, Argo.