Watching “Space Dogs,” one often finds oneself asking: “How did you film that?” Were you in a car or did you run along with them? Some of the takes are quite long.

That was one of the reasons why we tested the camera setup so thoroughly. We actually did run alongside them. So, no cars, no skateboard, or what have you. It was physically really hard work. Then there came a point when the pack had become so accustomed to us because we had been around them so much that the relationship became symbiotic. If we took a break, the dogs waited for us. That happened quite a lot, although I often had to decide off the cuff whether I should stop and do a wide shot when one of the dogs took off, or if I should try to keep up with it.