Vin Diesel became visibly emotional discussing the death of friend and co-star Paul Walker while appearing at a a recent Los Angeles screening of their movie Furious 7, which he called a "labor of love."
"It was in some ways the hardest movie I ever had to do because the relationships that you see on film are so real," Diesel, 47, said. "When the tragedy happened, I lost my best friend. I lost my brother."
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