"This dame keeps dragging me into the bushes. Keep your eye open, you may have to rescue me"

This quote by David O. Selznick is a funny way of warning somebody to be vigilant and ready to help him if needed. It indicates that he remains in a circumstance where a female is attempting to take him away to a secluded area, such as a bush. He is asking the person to watch out for him in case he needs saving. This could be analyzed as a warning to be knowledgeable about possible threat, in addition to a plea for help if he finds himself in a tight spot. It might also be interpreted as an amusing way of expressing his frustration with the woman's advances. In any case, it is a pointer to be prepared and to be familiar with one's surroundings.