John Travolta and Kelly Preston beamed yesterday as they stepped out of the Ritz Hotel in Paris with their daughter, Ella, and young son Benjamin. The Travolta gang headed to the City of Lights to spend Father's Day there as a foursome. It was the latest stop on young Benjamin's busy itinerary — the 7-month-old is a frequent jet-setter between the US and Europe with his high-flying parents. John may have to stay put on set in the coming months. He's due to start shooting Gotti: In The Shadow of My Father, and Kelly apparently has a role in the picture, too.