http://blogs.indiewire.com/theplaylist/watch-first-look-teaser-of-gravity-starring-sandra-bullock-george-clooney-20130508
http://marketsaw.blogspot.fr/2013/05/first-peek-at-alfonso-caurons-gravity.html#.UYngk0pd2KI
http://www.cinemateaser.com/2013/05/57245-video-premieres-images-de-gravity-d%E2%80%99alfonso-cuaron-avec-george-clooney-et-sandra-bullock