Thousands joined actress Kirstie Alley and singer Isaac Hayes in a protest against the French government attitudes toward the Los Angeles-based Church of Scientology.
After the rally in the city center, the international group of protesters moved elsewhere for a day of speeches and concerts.
Scientology has long had a contentious relationship with France and figures on a list of 178 groups being monitored to limit so-called cult activities. Scientology is seeking recognition as a legitimate religion in Europe.
“Our freedom of thought is under siege,” said Alley.
Hayes asked, “If it’s religion today, what will it be tomorrow?”