Brokeback Mountain stars Heath Ledger and Jake Gyllenhaal (c.Focus/Everett/Rex Features)

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Every film festival has its share of breakouts, blowouts and flops; thanks to Toronto International Film Festival's position at the start of Oscar season and the obscene numbers of North American entertainment reporters looking for the next big scoop, movies that play at the Canadian festival are scrutinized a little more aggressively than they are anywhere else. (Yes, even Cannes, where tomorrow is always another star-studded day.) Here are a few movies from previous Toronto festivals that have gone on to major cultural and/or critical impact.