Russell Crowe wasn’t the only one who made a splash at the Hotel Bel Air over Oscar weekend. New York’s very own Marjorie Gubelmann was the belle of the poolside ball. She and little Bobbi Christina, Whitney Houston’s seven-year-old daughter, organized a rousing game of Marco Polo, while Gigi, a pomeranian belonging to the son of Sean “P. Diddy” Combs, barked nearby. The fun and games continued when the gang ran into each other in first class on the flight back to New York. “Bobbi Christina was very well behaved,” said Gubelmann.