LOS ANGELES — Dwayne Johnson figures it was about 28 seconds into Day One of capturing the “Fast & Furious” spinoff ”Hobbs & Shaw” when he dropped a bit of shock on co-star Jason Statham. The two motion stars had already reviewed and agreed on the verbal bombs their respective adversaries — Johnson’s Luke Hobbs and Statham’s Deckard Shaw — would hurl at one another throughout a heated confrontation. But Johnson had inspiration for growing the increase. “So I go, ‘Jason I have an idea,’” Johnson recollects, re-creating the second in vivid element with a large grin. “‘What if I say instead something like: ‘I know why after all this time I don’t like you. It’s