My 3 yo son always announces to everyone everytime he sees a plane flying overhead that they're going to Disney to have dinner with Mickey Mouse.
Also, the Fox and Hound story is something I can relate to. One movie my son likes to watch is "The Road to El Dorado". There is one scene in there where the two guys are in a rowboat and the ship is heading straight for them" One guy yells, "Holy Ship!". An obvious play on words, and exactly the phrase my son decided to start repeating. At the time, we didn't realize it came from the movie, and you can imagine what we thought he was saying. In fact we were getting upset with him, and finally got it though to him that it was a bad word that he shouldn't say. A couple of weeks later we were over at Lake Huron with my in-laws and my father-in-law saw a big ship and pointed it out to my son. My son then went over to my wife and told her that grandpa just said a bad word. We finally were able to piece things together soon after that when my wife was watching the movie, and felt so bad for scolding him when he was saying "ship" all along.