"Concussion" is a well made and generally enjoyable presentation of the discovery of CTE and the beginning of the eventual death of professional football. It's great if you enjoy real-world conspiracy dramas, but now so good to think about if you love football.
"Joy" is terrible. Jennifer Lawrence does her best, but simply can't pay the freight on a bad script and somnambulent direction. This was our first movie of the new year, and I REALLY hope it is also the worst.
"The Hateful Eight" is a really good 83 minute movie trapped inside 167 minutes of film. There is some really good material here, but you have to stay conscious to find it.
"The Big Short" tells the story behind the collapse of the housing bubble 2007 and the financial meltdown of 2008. Given that the material is dry, complex, and depressing, it does a REALLY good job. Some of the techniques used to accomplish this are bizarre, but it all works pretty well.