“Extra’s” Terri Seymour recently sat down with Vin Diesel, who talked about having to finish “Fast & Furious 7” without his good friend Paul Walker, who died in a car crash last November. Paul’s brother, Cory and Caleb, stepped in to help finish the film, and Diesel said the experience was “surreal.” Vin also talked about playing Groot in the upcoming "Guardians of the Galaxy."