Anna and the Apocalypse may be the only “Zombie Christmas Musical” you’ll ever see, but it will also be the best one. As such, we were thrilled that the lead, one Ella Hunt, was in Texas to promote the festival darling. We had an absolute blast interviewing the actor/singer/zombie slayer about the jolly good, sing-songy ride. John McPhail‘s indie favorite is a love-letter to, obviously, many different genre films. But it’s also a charming endeavor that really offers up something endearing, energetic and substantive in addition to the ingenious zombie kills, witty jokes, and memorable musical numbers. And they certainly cast Anna right. Ella Hunt has a natural, fun-loving charisma that translates…