Silver Linings Playbook” pairs “Hunger Games” star Jennifer Lawrence and “The Hangover”‘s Bradley Cooper in an awkward mixture of drama and humor. The two of them dropped by during the Toronto International Film Festival to talk to Tribute.ca about their characters, who enter into a relationship under the strangest of circumstances. They also dish on their chemistry and what it was like working with Robert De Niro. Interview by Ola Sturik for Tribute Entertainment Media Group