Nicholas Hoult, Henry Cavill, Logan Marshall-Green, and Glen Powell are just a few of the men starring in Netflix's upcoming war drama, Sand Castle. Written by Iraq War vet Chris Roessner, the film is inspired by true events — and the trailer, which is just a small peek into the horrific nature of war, is pretty heartbreaking. Netflix will be debuting the movie (amid all its original content [1]) on April 21, and you can check out the trailer now.