How will film go on after Walker's death?

Actor Paul Walker arrives at the premiere Universal's 'Fast & Furious' held at Universal CityWalk Theaters on March 12, 2009 in Universal City, California. (Photo by Jason Merritt/Getty Images)
Actor Paul Walker arrives at the premiere Universal's 'Fast & Furious' held at Universal CityWalk Theaters on March 12, 2009 in Universal City, California. (Photo by Jason Merritt/Getty Images)

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    How will film go on after Walker's death?

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Tom O'Neil explains how "Fast & Furious 7" may continue in light of actor Paul Walker's death.