OK now, seeing that I am one of the 2 people on CAG that actually works in TV/Film and Broadcast production and have for coming up on 10 years I will give you some quick helpful tips. Although you just signed up for this site and it kinda of annoys me that this is one of the first things you post. You are basically spamming. As a warning this is going to come off mean but its the truth and a big part of legitimately working in video/film is taking criticisms without crying in a corner about what is said. With note that it seems like you are still in high school so I am scaling it back a little. Also note that most of what I say will require you to go look it up.
1. You camera composition is horrid. Go learn the law of 3rds before ever lifting another camera again. You are simply pointing the camera with a complete lack of framing. Head room, Lead room, background, foreground, target....try thinking about setting up scenes and not just free ballin it.
2. USE A TRIPOD.
3. This editing make no sense what so ever. A trailer should show the story arc of the movie as well as highlight what problem or situation the main character will try to overcome. This is just a bunch of clips of people doing nothing. You go from two guys talking to a shot of a guy pushing a cart down a hallway, note that the shot is so poorly composed that the focus is on the 10ft of carpet.
4. Speaking of editing why is the first 40 seconds of this trailer just pics with no set up what so ever...90% of people would stop watching after 5 because you fail to interest them in anyway.
5. "Crossing the line," look it up and then feel really stupid about the shots you were cutting.
I am sure this is just a one time only school project so I doubt what I said will stick.
EDIT: Also, please for the love of god dont say things like, "I am going to make a feature film," You clearly have no idea what the

you are talking about or what you are doing. Dont throw around words like that because although they might impress you friends who dont know any better you will come off instantly as a complete hack ass douche tool to anyone who actual knows the business.
A feature film.....pffftt you cant even compose a simply shot. My suggestion is to go take a class or go find a local production company and ask to intern...actually learn what you are doing first.