Just Announced! Remy’s Ratatouille Adventure Grand Opening at EPCOT Set for Oct. 1, 2021, in Honor of Walt Disney World Resort’s 50th Anniversary March 9, 2021 John Morales Epcot, Walt Disney World Resort, WDW Everyone’s favorite “Little Chef” is cooking up something really big for Walt Disney World Resort’s 50th anniversary, because the grand opening of Remy’s Ratatouille Adventure at EPCOT is set for Oct. 1 of this year!