Indiana state, Knox County and Vincennes city dignitaries are expected to be on hand for the grand opening and ribbon cutting for the Pantheon Theatre Business Project Thursday afternoon. The project involved the renovation of the old 1920s style theatre in downtown Vincennes into a business incubator. It is filled with over 15,000 square feet of open working spaces with private offices, conference rooms, and event areas. The official opening will be on December first. The project was a collaboration of several organizations and government entities. The grand opening is an invitation-only affair scheduled to begin at 3 p.m. Eastern Time. Indiana Chamber of Commerce Director Jim Schellinger is to be the guest speaker.