Amy Butler sent along this video from Lockheed Martin.
From the description:
On Aug. 8, an F-35B Lightning II Joint Strike Fighter test aircraft completed the program's first aerial weapons release. The aircraft (BF-3) dropped an inert 1,000-pound GBU-32 Joint Direct Attack Munition over an Atlantic test range from an internal weapons bay. Internal weapons carriage allows the F-35 to maintain a low-observable profile when combat loaded.