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Appearing at the film's press conference during the Toronto Film Festival, Moore revealed the frustration he feels at his inability to promote change in public policy through his movies, Contactmusic reports.
"I've been having to sort of knock my head against the wall here for 20 years saying these things," he said.
Referring to his last documentary Sicko, the director explained: "Two years ago, I tried to get the health care debate going, and it did eventually, and now where are we? What am I supposed to do at a certain point?"
The 45-year-old went on to indicate that he may return to making fictional films, adding: "I think making a good movie is about telling a good story, and you can do that through fiction or non-fiction."
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