Some info from Burlesque now that seems the promotion will start:
Website:
Burlesque - Official Site includes International Release Dates
Seems could be a bit release worldwide, and with promotion starting so early maybe some film festivals round: San Sebastian Film Festival is in September, also Venice is in late August or early September, maybe others like Toronto in September..... who knows.
And seems Burlesque already won its first Awards, but not sure if it's an important award:
Logo Awards enter ninth circle of stardom - Entertainment News, TV News, Media - Variety