Using the process above not only saves you time but you will have increased accuracy as
you line up your character rig to closely match the reference.
Keep in mind this is only a starting point you must still apply the principals of animation.
If you are looking for a tutorial to help you create a video plane in Maya you can check out
On Mars 3D's tutorial
How To Setup Planes and video reference in Maya While you're at it why not check
out
Aunmar's website for more amazing resources.