public boolean removeCinematicEvent(float timeStamp, CinematicEvent cinematicEvent) {
        cinematicEvent.dispose();
        KeyFrame keyFrame = timeLine.getKeyFrameAtTime(timeStamp);
        return removeCinematicEvent(keyFrame, cinematicEvent);
    }
removes the first occurrence found of the given cinematicEvent for the
given time stamp.

@param timeStamp the timestamp when the cinematicEvent has been added
@param cinematicEvent the cinematicEvent to remove
@return true if the element has been removed
jme3-core/src/main/java/com/jme3/cinematic/Cinematic.java