The French women commenced their World Cup campaign without any pressure as they seemed to look quite confident at the beginning of their match against Korea.
French pop star Jain provided the pregame entertainment for the sellout crowd of 45,261, while French President Emmanuel Macron was among the spectators singing La Marseillaise.
It was a merciless opening World Cup performances from Les Bleues - their win being the biggest by a host nation since the 2003 tournament when United States of America beat Nigeria 5-0.
Infantino has promised the month-long tournament will see the "explosion" of the women's game, with nearly a million tickets sold so far for matches in the nine host cities.
Renard made amends after 35 minutes, the powerful central defender thumping a header home for her 21st global goal.
The inaugural women's Ballon d'Or victor, who scored a hat-trick for her club in last month's Champions League final, is at odds with her national federation and will be missed.
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"We started well, it was the way to go we made it easy for ourselves".
In reply, South Korea also tried to level up the game with an opener before half-hour mark but Ji So-Yun failed to hit the ball from the box. She added another headed goal to make it 3-0 on the stroke of half-time of what was rapidly becoming a non-contest.
Henry added her 12th global goal off a pass from Le Sommer in the 85th.
China women's match that was broadcast last Friday only attracted 1.2m, a fraction of that figure.
Diacre had surprised many when her roster did not include PSG's Marie-Antoinette Katoto, a 20-year-old who led the French league in scoring.
Henry said after the match that the result will boost momentum for her side in coming matches.
"As a team, we played an extremely tough match. It is a must".