Toronto Film Fest guests knew she could dance, thanks to “Little Miss Sunshine.” But at the town’s venerable roots rock venue the Horseshoe Tavern on Sept. 14, Abigail Breslin showed a packed house, including an attentive Harvey Weinstein, her pipes.

“This is the first time I’ve sung in front of an audience,” she said before launching into two songs written by Irish singer-songwriter Gemma Hayes for the young thesp’s titular role in “Janie Jones,” which preemed at the TIFF three days later.

The day’s party-fest sked also featured the InStyle/HFPA shindig, headlining Jim Broadbent, Sarah Silverman, Bill Pullman and Edward Norton, fresh from his illuminating onstage interview with Bruce Springsteen at the TIFF Bell Lightbox.

Another sighting that day: Mumblecore star Joe Swanberg (“Hannah Takes the Stairs”) was in town for the world preem of Adam Wingard’s buzz pic “A Horrible Way to Die.” Swanberg, known for the graphic displays of sex and nudity in his pics, was one of dozens of indie film revelers clamoring to destroy pop standards at Gabby’s pub, host to SXSW fest’s karaoke bash.