Corrected entry: When Marty first goes to Doc Brown's house in 1955, Doc mocks Marty's claim that he has come back in time from 1985. When Marty tells him Ronald Reagan is President in 1985, Doc mocks him again and says "I suppose Jane Wyman is First Lady." Ronald Reagan divorced Jane Wyman in the late 1940s and married Nancy Davis in 1952. The fact was well known to anyone who kept track of movie stars so if Doc knew who Reagan was married to the first time, he would know in 1955 that Reagan had been married to Nancy Davis for three years by the time of the scene.
wolfchild
9th Nov 2003
Correction: He's mocking Marty. He is saying that it would be about as believable for Jane Wyman to be first lady with Ronald Reagan as it would be for Ronald Reagan to become president in the first place.
wolfchild