Ever wonder why there's no cool animals out there like unicorns and owlbears?4.15 / 5.00 17,612 Views
A rip-roaring dungeon running adventure!4.01 / 5.00 2,141 Views
Keep calm and shoot down mobsters.3.61 / 5.00 1,585 Views
Then you need a high-end CGI animator.
Perpetually looking for time to return to the arts.
Using proper grammar and spelling can go a long way in finding someone to work for you.
Also, method and quantity of payment helps.
...by "realistic video" I suppose you mean 3D Computer Graphics, right? This requires HIRING a professional 3D Animator/Modeler and a CG Texture Artist. It isn't cheap, trust me. However, this could be accomplished bytrolling forums that 3D Artists areKNOWN to frequent and then making a prospective employee an offer. Newgrounds isn't exactly the best place to look.
IF you meant a video with actual "real" people in it, you'll need to buy or rent video and audio recording equipment and HIRE actors.
Either way, it costs money. Not many people, aside from close friends, will be willing to preform any type of labor for free. These are the breaks.