The Walt Disney Studios has agreed to enter into an exclusive long-term distribution arrangement with filmmaker and DreamWorks Studios co-founder Steven Spielberg, and partner Stacey Snider, chief executive officer of DreamWorks, to distribute all upcoming live-action motion pictures produced by DreamWorks under their partnership with Reliance BIG Entertainment, part of The Reliance Anil Dhirubhai Ambani Group, it was announced Monday by Dick Cook, chairman of The Walt Disney Studios.