Thank you! That's what I was looking for. It's a little tricky, though. I did like you said, and only constrained the plane to the Y axis (up and down). It's a flat card image of a person and I want the person to always face the camera. This works fine when I rotate the camera around the front. But when the camera swings to the back, the Y constraint is reversed and goes the opposite way of the camera. It's strange. Any thoughts on why that is? I'll have to keep playing with it.