Choose a Starting Point
Launch Automator. A new workflow window will open displaying a sheet containing the new Starting Points feature.
Starting Points is a series of workflow templates that are populated with actions based on choices made by the user. It provides an easy way for those new to Automator to quickly learn how to create workflows.
More advanced Automator users can disable this feature from the Automator application menu, but for now simply select the Photos & Images workflow Starting Point and then determine the source of data for the workflow by choosing my Computer's Camera from the Get content from popup menu. Click the Choose button to open a new workflow window containing an action for taking a video snapshot.