I missed my November list so I'm just gonna make this one a 2015 catch-all for stuff I liked but missed posting about.
Project Greenlight (HBO)
This was probably the show I looked forward to most each week while it was on. It's a really good examination on the creative process and constraints. Most, if not all art requires compromise and this is basically about what happens when an artist refuses to do it at every turn. (Spoiler: they basically make the worst movie of 2015.)
I can't believe I hadn't read this book before. It basically established the alien invasion genre, with movies like Independance Day 'borrowing' from it liberally. Despite how many times you've seen elements from this book in other media, I promise you've never read anything like it. If you're sick of dystopian fiction, this book shows that utopian fiction can be just as terrifying.
Jessica Jones (Netflix)
You've probably already heard this recommended by everyone and their cousin, but it lives up to the hype. Cinematic Marvel might have the best special effects and suits, but Netflix Marvel has the best villains so far.
The less you know about this movie going in, the better. Probably my favorite thriller of last year for no other reason than how quickly it jumps into the story.