Doc tells Clara several times that Jules Verne is his favorite author. There is a serrated rail on the cow catcher of his locomotive time machine that is nearly identical to the rail on the front of the Nautilus in Disney's adaptation of Jules Verne's 20000 Leagues Under the Sea. Submitted by Grumpy Scot

The band playing at the Hill Valley festival is rock band ZZ Top (two guys with long white beards playing guitar, and a drummer), who wrote songs for the film.

When filming the scene where Marty is being hanged from the clock tower, Michael J Fox agreed to really hang from the rope. Whilst filming, Fox held the rope away from his throat with his hand. At one time he wasn't holding the rope and was really being strangled. The film crew didn't realise, they just thought it was really good acting, until he passed out.

Director Robert Zemeckis asked for Clint Eastwood's permission to use his name for BTTF 3. Clint Eastwood felt so honored that he said yes.

The film was shot simultaneously with Part II. In the five years since the original film was made, Michael J. Fox had forgotten how to ride a skateboard.

In BTTF 1, the first words in the movie are from the radio, and it is an ad for Statler Toyota. When Marty sees the black truck, before he time travels, it is being driven to Statler Toyota. When Marty walks into Hill Valley 1885, there is a billboard in the background for an honest Joe Statler, who buys, sells, and trades horses. Seems like the Statler family has been in the transportation industry for quite some time.

The automatic breakfast maker that cooks the eggs and the bacon, was designed and created by Simon Wells, great-grandson to the author of "The Time Machine" H.G. Wells, and director of the 2002 remake.

The gizmo on the back of the car that is the "Mr. Fusion" is actually a coffee bean grinder. My parents have that particular model.

Mary Steenburgen had such a good time dancing with Christopher Lloyd for the festival scenes that she overdid it one day and tore some ligaments in her leg. However, (again) because she enjoyed the dancing so much, she chose simply to fight through the pain. Submitted by Matty Blast

When Marty arrives back in 1985 on the train tracks, there is a sign saying 'Eastwood Ravine' as it would have been thought that Marty perished in the ravine when he travelled back to the future.

Looking for the three films at a whole, we can note that no fewer than FOUR DeLoreans were simultaneously existing in 1955: (1) the one in which Marty comes in the first movie; (2) the one in which the old Biff comes in second movie to give the Sports Almanac to his younger self; (3) the one in which Marty and Doc comes in second movie to rescue the Sports Almanac; and (4) the one which Doc hid in a mine in 1855 to be found by Marty in the third movie.

When Marty and Doc are looking at the map, finding a straight route for the train to take, for a moment the clock (the one that will be put in the clocktower later) can be seen. The time is about 10:04 AM, the time at which it will freeze in 1955 when it's struck by lightning.