. "A Sound of Thunder was a short story by Ray Bradbury. It tells the story of a man who steps on a butterfly in the past, and the future is dramatically changed. On April 15, 1986, Marcus Irving travels to January 8, 19654 B.C. in his Yugo time machine, temporarily stranding Marty McFly and Doc Brown. Doc used Bradbury's short story as inspiration to form a plan to get back home. He told Irving that their presence might wreck the ecosystem shortly before he left. They managed to escape sabre-tooth tigers shortly before Irving returned to bring them forward to 1997, as Doc had made him afraid of the butterfly effect their presence could cause that far in the past."@en . . "A Sound Of Thunder Is 2015 Action Adventure Sci-Fi and Remake 2005 and based on the novel by science fiction writer Ray Bradbury who died in 2012 Starring Ryan Reynolds,Jessica Biel,jason Statan,Selena Gomez,Brandon T Jackson,John Robinson,Vince Vangok,Christopher Gorham,Erin Richard,Gabriel Iglesias and Gary Oldman"@en . . . . . . . "A Sound of Thunder"@en . . "A Sound Of Thunder Is 2015 Action Adventure Sci-Fi and Remake 2005 and based on the novel by science fiction writer Ray Bradbury who died in 2012 Starring Ryan Reynolds,Jessica Biel,jason Statan,Selena Gomez,Brandon T Jackson,John Robinson,Vince Vangok,Christopher Gorham,Erin Richard,Gabriel Iglesias and Gary Oldman"@en . . . "A Sound of Thunder was a short story by Ray Bradbury. It tells the story of a man who steps on a butterfly in the past, and the future is dramatically changed. On April 15, 1986, Marcus Irving travels to January 8, 19654 B.C. in his Yugo time machine, temporarily stranding Marty McFly and Doc Brown. Doc used Bradbury's short story as inspiration to form a plan to get back home. He told Irving that their presence might wreck the ecosystem shortly before he left. They managed to escape sabre-tooth tigers shortly before Irving returned to bring them forward to 1997, as Doc had made him afraid of the butterfly effect their presence could cause that far in the past."@en . . . .