Yeah, the basic problem with amateur filmmaking is that audiences have become fairly competent at watching and understanding movies, but much less so at making them. There's tremendous film literacy w/r/t "reading" movies (even among the otherwise dumb--except maybe A.O. Scott--critical community), but very few people can "write" them.
Never mind good lighting, sets, and sound work, which money can in fact buy--many student films and "for fun" videos (and even a lot of indie films) try to emulate showy techniques (crazy reveals, shock cuts, crash zooms, lighting shifts, etc.) without the director really knowing what the hell he's doing in the first place. I recently saw the trailer for Dead Snow and the guy's doing crash zooms like crazy, but he doesn't know why he's doing them and it's pretty weak stuff.
If you're serious about making movies for more than fun, read a few books on them until you at least know how to frame a decent shot, edit to build tension/emotion/intensity, and how to work your way around the axis of action (PM me for suggestions!). And then rent a great traditional or seminal film in the genre you're shooting. Sit down with it, pick a few key scenes, and write up a shot list of the type of shots you see, the duration, and any important sound cues, etc. Important criteria to list include shot scale, focal length (if you have the eyes to determine it), any interesting effects (filtration/shallow or deep focus, high/low key light), camera movement, placement of audience (POV, OTS, single, dirty single, two-shot, etc.), etc. Pay attention to who's being followed when and who gets POV shots, over the shoulder shots, the most close ups, etc. Better yet, storyboard and draw where the camera would be for each shot in the sequence you're watching. For instance, the dinner table scene in Drag Me to Hell may seem effortless, but the number of tricky hinge shots and advanced cutting patterns used to cover the action and then effectively modulate between the traditionally shot conversation and Christine's experience of the Lamia taunting her is remarkable. Very few directors can do that. The scene functions great as both horror and comedy and while it looks effortless, it's an incredible work of craft. The fact that it even cuts together coherently is remarkable.
Another important trend to follow is subjectivity and range of narration. Pay attention during the course of a film to how much you know w/r/t other characters. Most comedies, for instance, are relatively omniscient, but they'll sometimes surprise you with an unexpected gag. A comedy that follows one character too closely will play more like a drama (like Foot Fist way, upon which I've expounded before....) and will not be funny to most non-jaded viewers. Watch the margin of safety and how it's maintained/undermined. Most horror movies (during scenes of horror) follow a single character and keep the camera physically close to that character most of the time (using wide angle lenses and an often-handheld camera) while also providing POV shots from that character's perspective to align you with his/her experience. But horror movies will often also include intercutting with shots of the killer or of an "ominous unclaimed POV" to hint at the killer's presence. Sometimes you'll see through the killer's point of view. Most Hitchcock movies are very subjective (you know about as much as the protagonist and, furthermore, experience POV shots primarily from the perspective of one character) but he will let you know about certain threats (a bomb, etc.) ahead of time to engender suspense or he'll use cutting patterns (such as in Strangers on a Train) to impose false timetables and associations. Consider what motivates camera placement. If you have a wide shot, why is it wide? If you have a close up, why is it close up and why is it shot with the focal length the director chose? What motivates a static camera versus a handheld one? (Watch Brokeback Mountain for effective use of limited handheld in an otherwise visually restrained film.)
There's a very basic language in film that's essentially transparent to 99.9% of viewers. So most of the cool techniques nascent filmmakers try to emulate are only those that are overt enough to draw attention to themselves--and also those that will look most amateurish when applied improperly and inelegantly. (Fading lights out w/o explicit diegetic motivation, for instance? Not recommended. Read a little Perkins--internal consistency trumps all.) When all else fails, think of your main character and follow him or her with the camera. Give him or her the majority of POVs and CUs. Shake the camera or use camera moves to indicate that person's subjective experience. Generally, only zoom in POV shots, if at all (that said: the Vertigo zooms in Jaws and Poltergeist are excellent; the zoom in the airplane plan shot in Knowing is very, very nice.)
If you are actually serious about trying to get a film into a festival step one is to make it ten times shorter than your current script is. Just shoot like one scene or something. Step two is to storyboard the entire thing and make sure it cuts together. Watch the axis of action and avoid intercutting between disjunctive camera movements. Follow the 20º rule (never cut between identical shot scales and never without turning the camera at least 20º--under normal circumstances, of course axial cuts can be used and used effectively but avoid them when they're unnecessary) and maintain clean exits and entrances--shoot them even when you think a match on action will cover the cut; you can always cut them out. Get enough coverage. Always have cut-aways; even though they'll sometimes weaken your scene because you lose focus a bit, a lack of cut-aways is the easiest way to ruin a scene completely. Then hire a talented crew to shoot it and make sure you have a good DP. Watch reels very carefully until you find someone who's done the kind of stuff you want to do, and communicate clearly: be on the same page about what you want and why. Shoot 2-3 pages a day at most. You can get people to work for free, but please feed them and pay for transportation. Never drink or smoke pot on set unless your crew is paid well; your crew will lose all respect for you, you asshole.
Lastly, 99% chance your movie will suck, but 100% chance you'll learn from it. The idea is to keep learning until it doesn't suck. And stop emulating these directors, damn it:
Nolan.
Scorsese.
Tarantino.
Antonioni.
Anyone French.
Michael Bay.
Kubrick. (Unless you're PTA.)
PTA. (Unless you're whatever PTA is to Kubrick.)
ESPECIALLY Malick.