A sales or marketing video helps you get your product, its benefits and features in front of your potential customer. Marketing videos are created to generate interest in your offering and move leads further down the sales funnel. If your potential customer enjoyed what he saw and felt your offering could be useful, he will be inclined to answer your call to action. Make sure your call to action is clear and compelling, especially since a well done video will have got your potential customer in the right frame of mind to take the next step.