Roger Corman’s Monsters, and a Roomful of Spies

In these three conversations from past New Yorker Festivals, some no-longer-covert agents share the truth about espionage. Roger Corman talks about creating a new template for independent movies, and whether “Sharktopus” has a message. And the actress Toni Collette revisits the many characters she’s played, including Tara, who suffers from dissociative identity disorder and is many characters in one.