Updated April 15, 2024 at 4:20 p.m.* PARIS — “Groundbreaking” … That’s likely the word that best applies to the next Olympic Games opening ceremony, scheduled for July 26 in the French capital. That is not to say that previous ceremonies have been lackluster or short on special effects. But they all took place in a stadium. This time, the events artistic director Thomas Joly plans to use the River Seine as his creative space. No less than six kilometers of it, from the Pont d’Austerlitz to the Eiffel Tower. Enough to dazzle the lucky few who manage to buy a paying ticket, or find a seat at t…