Ryan Reynolds has paid a heartfelt tribute to his co-star Rob Delaney's late son, Henry, in the end credits of 'Deadpool & Wolverine.' Henry passed away from a brain tumor in 2018, and Reynolds expressed regret for not honoring him in 'Deadpool 2.' He shared his thoughts on Instagram, praising Delaney as a 'subversively funny' and 'vulnerable writer.' Reynolds hopes that more people will see Henry’s name now, and mentioned Delaney's memoir, 'A Heart That Works,' which explores grief. 'Deadpool & Wolverine' has become the highest-grossing R-rated film of all time.