December is the most wonderful time of the year...for movie and TV lovers! For this list, well be looking at the most interesting, high profile and buzzworthy content coming to major streaming services this year in December. Our countdown includes Mank, Sound of Metal, Wonder Woman 1984, and more! What are you most excited to watch? Let us know in the comments below! Watch more great movie videos here: Top 10 Movies That Define Millennials: