I'll post a link to the trailer when it goes up on Yahoo. I probably can't embed it because LJ sucks and Yahoo iframes aren't whitelisted.
ETA: meant to post too that it sounds like Zac isn't going to Venice per @zacefron_news. But IS expected to go to TIFF per this press release and it is showing on Friday, 9/6 at 9:30pm and Sunday, 9/8 at 12:30pm at TIFF.
Also, tweeted a couple days ago, but should have added it here too, lol, the website is up here and the release date changed to October 4th.