Gary Marshall’s Cameo Appearance
Movies often use cameos of famous people. Sometimes they do this so subtly that you wouldn’t even notice unless someone told you, or unless you were really observant. For Pretty Woman, Gary Marshall, the director himself did a tiny cameo, and he’s pretty much unrecognizable. Unless you look really hard and also know what to expect, chances are you will probably move past the scene without sparing it a passing glance.

Source: Ron Batzdorff / Touchstone / Kobal / Shutterstock.com
There is a scene in the movie where a homeless man asks Richard Gere’s character for directions; that homeless man is the director, Garry Marshall. Garry is known for often adding secret, fun elements to many of the movies he directed, and this cameo was just another one of them.