Shotlist Manager - Free

I haven't tried this, but for those of you running Windows, you might want to try Shotlist Manager. It is free software developed by independent filmmaker Josh Johnson.

He notes:

I’ve developed a free shot list tool for directors to use during film production. You can even import screenplays from Celtx and the shot list tool will automatically generate a shot list for you. Simply edit scenes to add shot lists and you’re good to go. This is a great way to streamline the film production process, saving you time and organizing your shoot.