WATCH: #ALLEGIANT Teaser Trailer! September 15, 2015 by Satin Dents Leave a comment The teaser trailer for Allegiant has officially been released. Check out the awesomeness below: Allegiant opens in theaters on March 18, 2016. Share this:TwitterFacebookLike this:Like Loading... Related Author: Satin Dents My name is Satin, I am a huge fan of Veronica Roth and the Divergent series. I started this site because I wanted to inform fans with information on one of my favorite series and author.