Its not completely irrelevent. Never has been. For instance in January and February in North America a chunk of the country is experiencing sub freezing temps and ****** weather and less people want to leave the house. And people are usually broke right after christmas. Some months are alwayd going to be better than others.
Avatar and Titanic are the exceptions, the drops for both films were incredible and noy even Star Wars could match that now because it's too frontloaded.
Weirdly, in some places like the UK, January does quite well because of all the award contenders are released then. Wolf of Wall Street was a huge hit in the UK for example as was The Theory of Everything. It'll be interesting to see if The Hateful Eight and The Revenant do good business against Star Wars, I can see it picking the adult audiences who had their fill of Star Wars or people simply not interested in it.


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