In addition to the 11-metre high video screens, three curved LED products have been fitted horizontally on to the front of the building.
The design and manufacturing of the items was carried out by Daktronics France, which will allow the Grand Rex venue to show videos of images or information about future events and shows.
Alain Castelbou, sales manager at Daktronics, commented: "I'm proud to have worked with this historical theatre on such an amazing project. Everything looks great. It couldn't have turned out any better.
The Grand Rex Theatre was built in 1932 and is still recognised as the largest single movie auditorium in Europe, seating 2,750 people.
More than one million guests visit the facility every year to enjoy theatre shows and film screenings.
