Gigantoraptor
Since 2001, in a quarry, remains of the sauropod Sonidosaurus had been uncovered. In April 2005 Chinese paleontologist Xu Xing was asked to reenact the discovery of Sonidosaurus for a Japanese documentary. Xu obliged them by digging out a thighbone. As he wiped the bone clean, he suddenly realized it was not from a sauropod, but from an unidentifiable theropod about the size of Albertosaurus. He stopped the filming to secure the serendipitous find. This way, the discovery of the Gigantoraptor fossil was captured on videotape.