Yes, there are programs that can make video adjustments as well, but I’ve never used one. Obviously, with a still shot you can be much more detailed in your editing, which can make a huge difference. Even a simple program like Snapseed can do things like “heal” blemishes and allow you to change exposure in certain parts of a shot without affecting other parts. One rule of thumb: it’s better to be a little underexposed than overexposed. Details can be brightened in an underexposed shot, but if they’re blown out by overexposure, they’re probably not there to work with.