There are couple of teaser trailer of the movie The Host released on net. Though the producer don’t claim them to be released by them. One of the Stephenie Meyer fan has created them also giving a brief synopsis of the movie simultaneously.
Above all are fan made trailer which has been selected to be uploaded.
The real trailer of the Host is schedule to release with the movie Hunger Game on 23rd March, 2012.
Meanwhile the first look of the Host has been released.