Paul's mother, Cheryl Walker, tells E! she is "very proud" of her two sons for continuing Paul's work in the Fast & Furious franchise after his death last November.
"[I'm] very proud of them," Cheryl tells E! News exclusively. "It is bittersweet for them to do this. They are happy to honor their brother and finish the project."
Cheryl says that both Cody and Caleb "have had a wonderful time [on set and] are treated very graciously by the people."
Fast & Furious 7 announced two weeks ago that Caleb and Cody would fill in for their late brother in certain unfinished scenes.
"Paul had already shot his dramatic scenes and most of his action for Fast & Furious 7, and it's among the strongest work of his career," the film's Facebook page announced in a post. "We have resumed shooting and now welcome Paul's brothers, Caleb and Cody, into our Fast family. Caleb and Cody are helping us complete some remaining action for their brother and fill in small gaps left in production. Having them on set has made us all feel that Paul is with us too."
Cody also recently took to Facebook, writing, "I can now officially confirm what so many have already assumed. FF7—let's make it great and make my bro proud."