I'm a little confused by your question. You need to figure a way to make a moving flame movie? I've made some successful explosions with metaball objects deformed (with a dense atomizer) and rendered with an aura filter. By stretching the object and moving it appropriately, I've successfully simulated moving flame. If you can give a bit more detail, we might be able to give more specific pointers. BTW, what's a Callisto movie?