After the sudden death of Paul Walker, Vin Diesel said "Fast & Furious 7″ became the most challenging project of his career to date.
"It was, needless to say, the hardest movie I've ever done," Vin said at the junket for his latest movie, "Guardians of the Galaxy." "I remember when the tragedy happened, my mother said to me, 'It's not fair that you have to mourn in front of the world.'
"What's even harder is to mourn and simultaneously that the person is next to you, so every time you turn to whoever's sitting in that chair you see not Paul," he said.
The 47-year-old star said finishing the film with other actors filling in for his late co-star/friend was strange, but did help the cast gain a sense of closure – and made for an amazing final product.
"It's very, very weird," he said. "The good thing is, because we took all the time, the movie is a true testament to everyone coming together and wanting to honor both the saga and our brother, and there's something very beautiful about that.
