The festival’s opening film sees Hollywood’s highest-paid actor leave behind his iron suit to take on a serious role. Robert Downey Jr plays a city lawyer returning home to defend his estranged father, a town judge, who has been accused of murder. When the Iron Man star shared a first-look trailer on Twitter, he wrote: “This is the kind of movie I grew up wanting to make. Only took 49 years.” The father-son drama brings director David Dobkin (The Change-Up, Wedding Crashers) back to Toronto: his first movie appeared at the festival 15 years ago. Robert Duvall plays the father and Billy Bob Thornton takes the role of the prosecutor in a film with a strong cast that has been tipped as potential Oscar material.