Jake Gyllenhaal discusses his real-life friendship and on-screen affair with “Brokeback Mountain” co-star Heath Ledger during “Inside the Actor’s Studio.” “Heath and I knew each other for years before because we had both auditioned for ‘Moulin Rouge’ together,” Gyllenhaal explains to host James Lipton. “It’s a good movie,” he defended to the snickering acting students. See video: Jake Gyllenhaal Toured Like a Hobo With Mumford & Sons “I just remember saying, ‘Ah yeah, f— the past,” Gyllenhaal reminisced, as he laughed through memories of the late actor, who he called “super lovable.” Apparently, “Brokeback Mountain” was so convincing that some people think Gyllenhaal.