well, there is a continuous debate between my friends which form of acting (live theatre or film) shows more emotion.
I argue that (naturally) theatre is better as often you can feel the energy in the room when something is going on. The emotions the person projects on stage is so much more real than on film because when seeing it live you are literally living the moment.
At the same time, my friends argue that film captures emotion better because of close-ups and what not. You can use camera angles and more realistic sets to capture the moment.
I don't know if this helps, but it definitely shows a pro/con about the emotion in live theatre.
"talent is wanting something hard enough to work for it" - my drama teacher :)