Toy Story 4, which is released in the UK on 21 June, sees the toys grapple with the idea of the jumble sale crate, and the possibility of being left without a purpose when their owners grow up.

Compare that to this cat in "Toy Story 4." The difference is clear. But getting from that dog to this cat required a lot of innovation in between. Pixar forever changed animation in 1995 with "Toy ...