2015 D23 Expo

Toy Story 4 at the 2015 D23 Expo

ANAHEIM, CA - AUGUST 14: (L-R) Director John Lasseter, writers Will McCormack and Rashida Jones, co-director Josh Cooley and producer Galyn Susman of TOY STORY 4 took part today in "Pixar and Walt Disney Animation Studios: The Upcoming Films" presentation at Disney's D23 EXPO 2015 in Anaheim, Calif. (Photo by Jesse Grant/Getty Images for Disney)

Toy Story 4 at the 2015 D23 Expo

ANAHEIM, CA - AUGUST 14: Chief Creative Officer of Walt Disney and Pixar Animation Studios John Lasseter took part today in "Pixar and Walt Disney Animation Studios: The Upcoming Films" presentation at Disney's D23 EXPO 2015 in Anaheim, Calif. (Photo by Jesse Grant/Getty Images for Disney)

Toy Story 4 at the 2015 D23 Expo

ANAHEIM, CA - AUGUST 14: Characters from TOY STORY took part today in "Pixar and Walt Disney Animation Studios: The Upcoming Films" presentation at Disney's D23 EXPO 2015 in Anaheim, Calif. (Photo by Jesse Grant/Getty Images for Disney)

Toy Story 4 at the 2015 D23 Expo

ANAHEIM, CA - AUGUST 14: Chief Creative Officer of Walt Disney and Pixar Animation Studios John Lasseter took part today in "Pixar and Walt Disney Animation Studios: The Upcoming Films" presentation at Disney's D23 EXPO 2015 in Anaheim, Calif. (Photo by Jesse Grant/Getty Images for Disney)

Toy Story 4 at the 2015 D23 Expo

ANAHEIM, CA - AUGUST 14: Composer Randy Newman of TOY STORY 1, 2 and 3 took part today in "Pixar and Walt Disney Animation Studios: The Upcoming Films" presentation at Disney's D23 EXPO 2015 in Anaheim, Calif. (Photo by Jesse Grant/Getty Images for Disney)

Toy Story 4 at the 2015 D23 Expo

ANAHEIM, CA - AUGUST 14: Composer Randy Newman of TOY STORY 1, 2 and 3 and director John Lasseter of TOY STORY 4 (C) took part today in "Pixar and Walt Disney Animation Studios: The Upcoming Films" presentation at Disney's D23 EXPO 2015 in Anaheim, Calif. (Photo by Jesse Grant/Getty Images for Disney)

Toy Story 4 at the 2015 D23 Expo

ANAHEIM, CA - AUGUST 14: Characters from TOY STORY took part today in "Pixar and Walt Disney Animation Studios: The Upcoming Films" presentation at Disney's D23 EXPO 2015 in Anaheim, Calif. (Photo by Jesse Grant/Getty Images for Disney)

Toy Story 4 at the 2015 D23 Expo

ANAHEIM, CA - AUGUST 14: Director John Lasseter of TOY STORY 4 took part today in "Pixar and Walt Disney Animation Studios: The Upcoming Films" presentation at Disney's D23 EXPO 2015 in Anaheim, Calif. (Photo by Jesse Grant/Getty Images for Disney)

Toy Story 4 at the 2015 D23 Expo

ANAHEIM, CA - AUGUST 14: (L-R) Writers Will McCormack and Rashida Jones, director John Lasseter, producer Galyn Susman and co-director Josh Cooley of TOY STORY 4 took part today in "Pixar and Walt Disney Animation Studios: The Upcoming Films" presentation at Disney's D23 EXPO 2015 in Anaheim, Calif. (Photo by Alberto E. Rodriguez/Getty Images for Disney)

Toy Story 4 at the 2015 D23 Expo

ANAHEIM, CA - AUGUST 14: Chief Creative Officer of Walt Disney and Pixar Animation Studios John Lasseter took part today in "Pixar and Walt Disney Animation Studios: The Upcoming Films" presentation at Disney's D23 EXPO 2015 in Anaheim, Calif. (Photo by Jesse Grant/Getty Images for Disney)