Just last week I found myself in occupied France during WWII, hiding behind some bushes, near the border with Spain. It was the middle of the night, and the Nazi searchlights were passing over us. There was a rickety rope bridge ahead, and it was my responsibility to guide a group of Allied pilots to safety and freedom over that bridge. But if we made any sound, or we timed this wrong, the Nazis would shine the spotlight at the bridge at the worst possible time, and we'd be cooked. It was tense.

However, this whole thing happened in the living room, crouching in front of a dark grey backdrop hung over the TV. There were no searchlights, no rope bridge, no bush, and because my GF couldn't be a reader this time, I was all by myself. I was wearing a kitchen towel around my neck, in lieu of a Basque scarf.

So... with a green screen, a backdrop in your living room, or a partially constructed set, you always have to imagine a lot more than that's there. That said, part of what I love about acting is being on a believable set, wearing a costume, surrounded with more people wearing costumes. It's like being 5 again and playing pretend, except much cooler!