It's the final stretch for the Johnny Depp-Amber Heard trial -- and it seems people are well aware of that ... flocking to get in line for a front-row seat, and doing so by the hundreds.Check out this insane footage we shot Tuesday morning outside of the courthouse in Fairfax, VA -- where scores of bodies are lined up outside the front entrance in hopes of scoring a wristband to gain entry ... one of the most coveted items in and around that area right now.