I was thinking the movie would make a good segue into comparing fictional characters to real animals (for example: comparing real bears to Paddington) or fiction vs. nonfiction. It could also serve as a springboard for writing about being lost or losing something important, for learning about families and how not all families are the same, or for comparing the geography for where you live to that of where Paddington is.
You could also work on letter writing skills, how-to writing for how to take care of Paddington, and creative story writing for other places Paddington could visit.
Check out the super funny trailer for Paddington.
Check out more information about the movie on Facebook, Twitter, and from the official Paddington Movie website.