Disney and Pixar exec John Lasseter, who introduced the first full-length computer animated film 20 years ago this November, remembers the times he was told a computer-generated film would never work. As we approach the 20th anniversary of “Toy Story,” the visionary imagines a time when future artists create feature-length films with an iPhone or GoPro. “People will tell you, ‘That’s not going to work,’ but yeah, that’s going to work,” Lasseter told an audience at AMPAS this week. “But the reason they say that is because it’s not what they are used to.” According to Variety, Lasseter “said that innovators need to read voraciously, be nimble with their technique and ‘be wrong as fast as they can’ — making and remaking stories rapidly to hone their skills and their stories.”