Dude, your action's not cutting together. Jump-cut after jump-cut after jump-cut, and I get the feeling they weren't intentional. In one shot, he stands up, then in the next shot, he stands up. In one shot, he opens the door, then in the next shot, he opens the door. Even little stuff is noticeable, like the way he scratches his face. Even little stuff needs to match up, as best you can, from shot to shot.
Somebody opening a door is the easiest way to cut on action. In the first shot (the one you've already got in your timeline), you line it up to a point at which he has begun to open the door, but just a little. In your preview screen, you load the clip that you want to cut to, and advance it just far enough that it appears to line up, action-wise, with the shot in the timeline. Set your in-point. Let it play a little longer than you plan to use it and set your out-point. Now drop it in the timeline. Once it's in the timeline, check it frame-by-frame, and in regular-speed to see how it matches up. Watch it over and over again. If it's off, adjust it a frame at a time, and keep watching it, until it's just right. This is how you match action for all kinds of shots, and the more you practice it, the faster it becomes. Some of your cuts are about 20 frames off, and honestly, your audience will notice even one frame of discrepancy.
Sorry, didn't mean to be over-critical. For what it's worth, I tend to only offer critique to those whose work has impressed me, in one way or another. This is a good first film.
