1. A Contract Salary For MJF That Put Hollywood's Payday To Shame
Back To The Future is a classic American film that became a total box office smash-hit. It was so popular that in 1998 it won the people's choice awards for favorite movie, in addition to an academy award. It's no surprise that after the first rendition grossed a mere $210,609,762 in box office revenue the popular film would be followed up by three sequels. However, what the public perceived as an astonishing production, was not the full picture. Film producers made serious efforts to ensure that fans would not find out about some of the most dramatic and revealing facts behind the making of Back To The Future 1,2 & 3. Until now, never before information behind what truly went on between cast and crew and the hidden bloopers planted in the movie were never released.
But even for the true die-hard fans, what you'll find out next will leave you speechless 
Michael J. Fox went above and beyond playing Marty McFly - His award winning performance left fans wanting more and more; and in no time he became a A-list celebrity and a household name. But producers knew that without back to the future Michael would have a hard time keeping his fame and popularity. What they did in order to ensure he was chained to the franchise without having any freedom set a precedent for how Hollywood would control their actors. And believe us, it's not what we expected....
Michael J. Fox has a net worth that spans well over a whopping 65 million dollars these days and he has back to the future producers to thank for that. His contract with Universal Pictures made him one of the highest paid actors to have ever signed with a production company.
2. The Doc Wears a Shirt in Back to the Future II That Suggests to the Plot of Back To The Future III
At the time, producers tried to conceal how much he was making so that co-stars and other actors would not find out and demand higher salaries. But believe it or not, these sneaky producers didn't stop there in order to keep fans and cast from knowing what they were up to. In fact you won't expect what came next
Producers knew that they were sitting on a gold mind and certainly weren't about to forget it. So when filming had begun for Back to the future II they already knew what was in store to come for the next sequel in the saga; hence the cowboys on horseback and a train, foreshadowing the climax of the third film.
3. Hill Valley Cost More to Rebuild for the Sequels Than to Build for the Original
But until recently this hidden gem and the next one were kept hush hush
When Hill Valley was created for the original Back to the Future they built the town in the pristine 1955 condition and shot the middle of the movie, then damaged it for the 1985 town and shot the beginning and end of the movie. When they decided to shoot Back to the Future II they had to clean the set up and restore it to the same condition it was in 1955.
4.Doc's Iconic Hunch Was Developed Due to Michael J. Fox Being Just 5'4"
It cost more to rebuild than it had cost to build from scratch and that's not all...
Doc's distinctive hunched-over look was developed when the filmmakers realized the extreme difference in height between Christopher Lloyd (6' 1") and Michael J Fox (5' 4"). To compensate for the height difference, director Robert Zemeckis used specific blocking where the two often stood far apart at different camera depths.
5.The Franchise Cast Michael J. Fox, Lost Him to Scheduling Conflicts, Then Cast Him Again
For close ups, Lloyd would have to hunch over to appear in frame with Fox.
R_BTTF2A Petty has often referred to his decades-long friendship with Stevie Nicks as fiery and intense. She was one of the constants in his life. She helped him through ending his first marriage, his depression and reconnecting with his daughters.
6.The First Film Wrapped and Was Then Edited, SFX'd, Scored, and Released in Record Time
Nicks was one of the trusted few in Petty's life. These two had a friendship that was deeper than fans could ever know.
From the day the film wrapped to the day it was released was a mere nine and a half weeks, an unprecedentedly short lead time for a major movie release.
7.The Town in Which They Filmed Back to the Future III Was Destroyed by Lightning Years Later
Good luck doing that nowadays with the months of CGI required for many films.
8.Ronald Reagan LOVED Back to the Future
They filmed in Jamestown, CA, a town that was, in an eerily fitting way, destroyed by lightning in 1996.
Apparently Ronald Reagan was quite amused by Doc Brown's disbelief that an actor like him could become president, so much so that he had the projectionist stop and replay the scene.
9.Elijah Wood Makes His Theatrical Debut in the Franchise
He also seemed to enjoy it so much that he even made a direct reference of the film in his 1986 State of the Union address: "As they said in the film Back to the Future, 'Where we're going, we don't need roads.'"
Elijah Wood's first feature film appearance came with the role of Video Game Boy in Back to the Future II.
10.Universal Pictures Execs Had Some... Interesting Ideas About the Title
He played one of the two video game boys with whom Marty speaks in the diner near the beginning of the film.
Universal Pictures head Sid Sheinberg did not like the title Back to the Future, insisting that nobody would see a movie with "future" in the title. In a memo to Robert Zemeckis, he said that the title should be changed to Spaceman from Pluto, tying in with the Marty-as-alien jokes in the film, and also suggested further changes like replacing the "I'm Darth Vader from planet Vulcan" line with "I am a spaceman from Pluto!" Sheinberg was persuaded to change his mind by a response memo from Steven Spielberg, which thanked him for sending a wonderful "joke memo," and that everyone got a kick out of it.
11.The First Film Accidentally Laid Some Great Groundwork for Its Sequel
Sheinberg, too proud to admit he was serious, gave in to letting the film retain its title.
12. Before He Was Edward Scissorhands, Hunter S. Thompson, or Jack Sparrow, Johnny Depp Could Have Been Marty McFly
During Doc's demo of the time machine, just before he is about to leave for the future, he tells Marty "I'll get to see who wins the next twenty-five World Series." At the time the scene was written and shot, no one was thinking there would be a sequel, let alone one where the hook would be Marty wanting to get a hold of a "sports almanac" so he could bet on games.
13.The Blu-ray Release for the Trilogy Was Timed Perfectly
According to Bob Gale, Johnny Depp auditioned for the role of Marty McFly: "I looked through the notes, and I said, 'Geez, I don't even remember that we read Johnny Depp!' So whatever he did, it wasn't all that memorable, I guess!"
In the entire Back to the Future trilogy, the "present" date is October 26, 1985 (2015 is the future, 1885 and 1955 are the past).
14. 1.21 Jigawatts (Is an Actual Quantity of Electricity)
Exactly 25 years later, on October 26, 2010 the entire Back to the Future trilogy was released as a Blu-ray 25th Anniversary Edition.
Doc Brown refers to "jigawatts" of electricity. This is the now-obscure but once-standard pronunciation of the word "gigawatt," one billion watts.
15. It Took 11 Months to Shoot Both Sequels Back to Back
Nowadays it is usually pronounced with a hard "g" as in "gander" and "gold." In neo-Latin languages, still, it's pronounced with a soft "g."
16.The Flying Time Traveling Train Is the Culmination of the Whole Franchise
Back to the Future II and III were shot consecutively over the course of 11 months, with just a three week break between.
