Vertical Entertainment has released the trailer for David M. Rosenthal’s remake of Jacob’s Ladder. The new version updates the 1990 film for the Iraq War and follows Jacob (Michael Ealy), a veteran who comes home and sees his brother Isaac (Jesse Williams), who he thought died in battle. But as Jacob tries to help Isaac, he starts to see demons all around him. The 1990 original starring Tim Robbins is a terrific psychological thriller that deals with PTSD in a way that no one was really talking about at the time. It makes some brilliant metaphysical twists and …