I just wrote what may be the world's shortest screenplay. That's hyperbole, certainly, but it's quite brief. 358 words and just onto the second page.
Often I have glimpses of scenes. Usually they're comic sketches, over in a moment. The sort of thing that would probably lose its humor if extended beyond a few minutes.
This piece, I think, could stand to go a little longer. Maybe five pages, max. ::does a quick re-scan:: Maybe three. Or a full two.
There's nothing wrong with scenes, I believe, especially since so much thought lately goes to lengthy works. Scenes are the heartbeat. A quick inhalation of air, the hand on the doorknob, the voice that asks, "Who's there?"