Fix it in-camera. People always talk about getting the most neutral or 'flat' picture profiles as possible, to be able to tweak the look of their video later on with color correction software. But there are some good arguments why you don't want to go that route. For one: you don't have time to manipulate all the shots in postproduction. Or: you don't have the skills.
Another good reason is that you can get such incredible result tweaking the camera settings that there simply is no reason to want more. This fine looking, very informative video shows you how to play around with the settings in camera so you can get that specific look you want, without any color correction after the shoot.