Brown spokesman Sterling Clifford says the $5,000-a-head reception will be Thursday at the Soho House in West Hollywood. Donors who give or raise $25,000, just below the maximum contribution, will attend a private reception.
Katzenberg, Spielberg and Geffen, the founders of the DreamWorks movie studio, have long supported Democratic candidates. They have thrown fundraisers for President Barack Obama and former President Bill Clinton.
Other co-chairs of the event include Hollywood celebrities J.J. Abrams, Warren Beatty, Annette Bening, George Lucas and Rob Reiner.
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