This application will let you select several .mov files to play in QuickTime in sequential order. First, you will be asked to select movie files. Next, you can select the viewing size for the movies and whether to display them on a primary or secondary display. QuickTime will open and the first selected movie will play. When the movie is finished or when you close that movie file, the next movie will automatically open and play.
Automator Workflow
Step 1: Ask for Finder Items
Step 2: Play Movies