I have a friend who makes rock documentaries and his boss will often rent an $8K camera. My friend sometimes shoots on a $500 DSLR, and once mixed in some of his footage. His boss could tell the difference, but it wasn't significant, and it made him wonder why they even rented the nicer camera.
You could give me the best camera in the world and my pictures would still be "Meh". It's not the camera that makes the difference.
A DSLR will read the sensor progressively, from top to bottom. So if an image changes from the top of the frame to the bottom (if the camera pans or an object moves horizontally) the top is recorded slightly before the bottom, leading to a "tilting" effect. This would be really noticeable if you were to follow someone around with a steadicam, or had objects moving across the screen with any real speed.
When I watch short amateur films on Youtube this effect can ruin the whole experience for me, since I can't stop noticing it. However, a shot of a rock show (crowd or stage) would likely be busy enough to make the effect unnoticeable. There are probably algorithms that fix it too, especially if the film is shot at a higher resolution than is being output (to allow adjustments at the edges of frame).