Authors:

If I'm shooting actually a live-action movie and I feel like I can get the shots that I need with the existing 3D cameras, then I see there is no reason to not use those-to not shoot it in 3D. But there are limitations to the 3D cameras in terms of the amount of them, in terms of the size of them, in terms of where you can actually shoot them. There are definitely limitations so you have to weigh the costs. And you have to weigh also what ultimately what creatively you want to get.

Source: collider.com
If I'm shooting actually a live-action movie and I feel like I can get the shots that I need with the existing 3D cameras, then I see there is no reason to not use those-to not shoot it in 3D. But there are limitations