The film was really about Ms. Travers, not Walt. And here's a story about how piracy might have affected "Banks" box office:
http://if.com.au/2013/12/31/article/Pirates-devour-Saving-Mr-Banks/RSOFKMJWPA.html
Yes, I'm aware of the story. I'm aware Thompson was the lead actress, and Hanks was the supporting actor. Travers was lead, Disney was supporting. That doesn't mean his character was excused from depth. It was a one-note, simplistic role, and Hanks played one-note and simplistic very well.
It was incredibly clear that Disney executives did not give the filmmakers free reign in making this film. It was obvious that they were protecting the image of Walt Disney in this one.
This had to have been one of the cleanest, least controversial PG-13 films I've ever seen, and while there is always a place for good, wholesome entertainment (which
Banks was), the choice not to dig deeper into the Travers/Disney relationship is a big reason why so many people don't include as one of the year's absolute best.
Metacritic, which I consider to be the primary source for consensus opinions, has a solid but unspectacular 65/100 from critics and 7.5/10 from users. Compare that to
Wolf of Wall Street (75 and 7.9),
American Hustle (90 and 7.8),
Gravity (96 and 8.2),
12 Years a Slave (97 and 8.1), and
Dallas Buyers Club (84 and 8.1). Simply put, your love for the film exceeds that of the average moviegoer and critic.
Thompson maybe should have been nominated for Best Actress (though she would have lost to Cate Blanchett or Amy Adams), but to suggest that Hanks should have been nominated is nuts. His performance in
Captain Phillips is substantially better than anything in
Banks.