Marty scrambles into a theater and encounters a concert by Huey Lewis & The News playing material from 1989 that he had never heard of before.Marty is seen as his son Norman by Griff outside the McDonald's, which begins the chase scene.Jennifer and Marty live on 1311 Park Lane in Hilldale.

The almanac covers a span from 1965-2014, rather than 1950-2000 and is 5000 pages thick however ultra-thin paper keeps it light.

Marty finds the almanac, but only the cover is on display.

He goes back to his laboratory to retrieve Einstein.

Jennifer remains awake and explores downtown with Marty, with Doc's plan falling through when they disappear.

When his age is revealed at the checkout counter of the bookstore, he fakes a story that he got a face lift, however in 2015, drastic wrinkle job surgery is possible.

Marty's birthdate is established as June 20, 1968, and his middle name is Hopkins, based upon a memorable weekend that his parents had at the Mark Hopkins Hotel in San Francisco.

Griff also replicates the 'Hello, anybody home' line.

Griff and his gang enter the McDonald's and replicate the same scene between Biff and George on Norman, except this time with computer disks, data cards, and passkey codes.

Marty and Jennifer access a pay phone with a computer database that searches for all retail bookstores within one mile of its location.

The Holographic Imax Theater plays Godzilla 2015 instead of Jaws 19.

A billboard advertises Vietnam vacations for TWA, instead of US Air.

The two-level gas station is operated by Nippoco, under the Nippon Oil Company.

Marty and Jennifer have two 17-year-old children, but their names are Norman and Doris.

The Courthouse is now the new entrance to the Courthouse Mall.

There is a fountain in the duck pond in front of the Courthouse.

Courthouse Square no longer has streets but giant sidewalks for pedestrians and bicyclers only, with flying vehicles restricted to elevated streets.

Doc tells Marty and Jennifer about their kids once they are already in the alleyway in 2015.

Doc, Marty, and Jennifer arrive on Octoat 3:30 pm.

The scene where Jennifer notices the items in her house is fairly similar to those of the Back to the Future Part II novelization.

Doc's garage still exists but it is surrounded by an industrial park.

Thumb pads are prevalent in 2015 as in the film.

Brown's advice to Marty that his future hasn't yet been written. Marty realizes that his birthdate is nine months away and that he has, once again, endangered his existence. Lorraine posts his $500 bond and cancels her plans for a romantic weekend with George in San Francisco. Out of place in 1967, Marty ends up in jail.

Instead of revisiting 1955, however the script called for Doc and Marty to travel to September 20, 1967. Leaving Jennifer behind, Doc and Marty went back to the day that old Biff gave the almanac to his younger self. Biff stole the almanac and the time machine, and when the travelers returned to 1985, they returned to an alternate timeline where Biff was rich, powerful, and Marty's stepfather. While in the year 2015, Marty spotted a sports almanac and was determined to bring it back to 1985 so that he could win bets. As promised at the close of the first film, Doc, Marty and Jennifer traveled into the future to accomplish the mission ('Something's got to be done about your kids!'). In the first draft, written by Gale and with the working title 'Number Two', there were some elements that would appear in the final version released in 1989. When the film was released on VHS and Laser Disc on November 30, 1986, 'To Be Continued.' was added. In the theatrical release, the departure of Doc, Marty and Jennifer was followed immediately by the credits. ' The only thing more uncertain than the future is the past.' -Soviet proverb that intros the scriptAfter the success of Back to the Future, Robert Zemeckis and Bob Gale worked on the problem of a sequel.

Bttf 2 biff