In the "Places" panel, right-click your KML folder and select "Record a Tour" (or click the video camera icon). Play through the KML points to record the movement.
Remember: A KML file is data. A video is emotion. By making the conversion, you transform coordinates into a journey. So open your KML, launch your tool of choice, and start producing videos that turn cold geography into warm, engaging stories.
Free, high-quality 3D terrain, supports textures and 3D buildings. Cons: Manual tour recording can be tedious for long paths; limited animation of data points (e.g., a moving car).