http://www.wdwinfo.com/wdwinfo/earlyentry.htm#littleones
LITTLE ONES MAGIC HOUR
Beginning in August, guests staying at a WDW resort, Swan/Dolphin, Shades of Green, and the Hilton in the WDW Resort will be able to enjoy select attractions in Fantasyland one hour prior to the opening time for the Magic Kingdom.
Sundays: 8/13, 8/20, 8/27, 9/3, 9/10, 9/17, 9/24
Wednesdays: 8/16, 8/23, 8/30, 9/6, 9/13, 9/20, 9/27
Fridays: 8/18, 8/25, 9/1, 9/8, 9/15, 9/22, 9/29
It is not known if the Little Ones Magic Hour will be extended beyond August/September. A valid theme park ticket and Resort ID will be required.