BK, I see Garanca has a DVD of Carmen, and that might be interesting. My favorite DVD of Carmen remains Sir Peter Hall's Glyndebourne production of the original opera-comique version with spoken dialogue, with Maria Ewing, at the time Mrs Peter Hall. It begins light, like a musical comedy, and gets darker and darker.
I also like the wonderful film version with Placido Domingo, Julia Migenes, and my friend Faith Esham. although I wish Domingo were 10-15 years younger to play a young man caught in a fatal attraction.