For one, you'll have plenty of five-star reviews everywhere. There's almost no dialogue of any kind. All of the glory shots - usually one with a large, active background and the central character right in the foreground - are featured. There's also some key song or piece of music from the movie in there, too.
In short, it's your run-of-the-mill Oscar trailer that comes out every year - except this one just so happens to be from Netflix. The credentials for the movie are all there, as Alfonso 'Children Of Men' Cuaron is both writing and directing and the cinematography looks gorgeous.
Just to give you an idea of the accolades it's been getting already, 'Roma' currently has a 99% rating on Rotten Tomatoes, a 96% on MetaCritic and as you see in the trailer, it's got five-star reviews coming out of every orifice.
So yes, expect to see 'Roma' in the Oscar race in the coming months.
'Roma' hits Netflix everywhere from December 14th.