Finally here we have the first clip of the film…

Enjoy:

https://www.youtube.com/watch?v=SUByKeoKBO8

In addition, the first written reviews are emerging slowly, and follow the same vein as the first twitter reactions: a great movie and, above all, an excellent Natalie perfomance:

Variety: Chilean helmer Pablo Larraín makes an extraordinary English-lingo debut with this daring, many-leveled portrait of history’s favorite First Lady.

The Hollywood Reporter: A shattering reflection on loss and legacy

The Playlist: Natalie Portman Is Better Than Ever In Pablo Larrain’s Kennedy Biopic ‘Jackie’

Screendaily: Natalie Portman excels in her most demanding and most complex performance to date as First Lady Jacqueline Kennedy, shown living through the immediate aftermath of her husband’s assassination in 1963.

Dailiy Beast: Natalie Portman Wows as Jacqueline Kennedy in ‘Jackie’: A Powerful Portrait of Grief Under Fire