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George Lucas-Mellody Hobson Wedding Party at Promontory Point Saturday

By  Sam Cholke and Wendell Hutson | June 26, 2013 6:36am | Updated on June 27, 2013 10:51am

 A massive stage and tent are being erected at Promontory Point for a party celebrating the wedding of filmmaker George Lucas and Chicago's Mellody Hobson.
Promontory Point Mystery Event
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HYDE PARK — A massive party being planned for Promontory Point Saturday will be a celebration of the marriage of filmmaker George Lucas and Chicago's Mellody Hobson, DNAinfo.com Chicago has confirmed.

The event will start at 7 p.m., a source said.

Lucas and Hobson, who were married in front of plenty of Hollywood stars at Lucas' Skywalker Ranch in California last weekend, are having an another celebration for Chicago friends on Saturday.

Click here to see exlusive photos of stars at the Lucas-Hobson party Saturday.

Hobson, who is president of Chicago-based Ariel Investments, is also chairman of the board of Dream Works Animation.

Late Sunday, construction of a massive stage at Promontory Point in Hyde Park stirred up clouds of gossip in the neighborhood as to who was planning the event and who was attending.

Speculation ranged from a millionaire’s wedding to a huge secret concert — or both. Some even said a private fireworks display will light up the lake off the park on Saturday.

“I thought they were just going to set up a stage here, but this is huge. It’s the size of a football field if not bigger,” said Diek Calvert, who was out walking his golden retriever Nala on Tuesday afternoon.

“Whoever it is, they’re spending a lot of money,” Calvert said. “Look how much money they’re spending for something temporary.”

A spokeswoman for the Chicago Park District declined to comment on the event.

Though they declined to give their names, workers building the stage had said it was for a wedding.

Weddings are frequent at Promontory Point, but rarely spill out of the field house. As recently as Saturday, wedding guests mingled with Hyde Parkers lounging on the rocks as a cover band chugged through "Brown Eyed Girl."

The Park District sent out a notice to residents near the lake on Friday that the park will be closed east of the bike path on Saturday. Parking lots at 55th Street and South Shore Drive and the Museum of Science and Industry’s south lot will be closed from 6 a.m. Saturday through noon Sunday.

Crews built a $100,000 air-conditioned tent to cover the platform.

Crews from several Los Angeles and Chicago event planners said their job was to install a $60,000 lighting rig and build the platform by Saturday and have it torn down by July 4. It required special permits to raise the temporary structure at the park.

Workers from the city have been at the park this week to paint the field house and pedestrian tunnel under Lake Shore Drive and put down fresh asphalt.

By the end of the day on Tuesday, the roof was complete, and walls were starting to go up between the temporary structure and felled trees from Monday’s storm.

Crews working at the park said speakers were expected to arrive Wednesday.