Today is the day that Marty McFly and Emmett Lathrop "Doc" Brown travelled forward to in the famous sci-fi film Back to the Future Part II, released in 1989. In the year 1985, Marty and Doc jumped into the DeLorean time machine and journeyed to the once far off world of 21 October 2015.

However, scriptwriter Bob Gale’s imagined vision of 2015 is not so different to the reality of today – and here are some astonishing Guinness World Records facts and feats to prove it…
 
Greatest time dilation

In the Back to the Future movies, Doc uses a DeLorian DMC-12 as a time machine which can travel both forwards and backwards through time. The closest real-life version of this classic car was the Soviet/Russian Mir Space Station. The most time dilation experienced by an individual is approximately 1/48th of a second, for Russian cosmonaut Sergei Krikalev. This is a direct consequence of the 803 days 9 hr 39 min he has spent in space. While in orbit, travelling at around 27,000 kph (17,000 mph), relative to everyone else, he has essentially "time travelled" a fraction of a second into the future. This is consistent with Albert Einstein's Theory of Special Relativity.
 

German Sven Hagemeier managed to suspend the process of time too when he celebrated his birthday for 46 hours, crossing time zones by flying from Auckland to Brisbane and then to Honolulu on 5 August 2014.
 
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Youngest double toppers

British pop/rock band McFly named themselves after the character of Marty McFly, inspired by their mentors and fellow band Busted who referenced Back to the Future in their hit single “Year 3000”.
 
McFly became the youngest group to top the UK charts with two albums, completing the double on 10 September 2005 with 'Wonderland'.
 
 
 
In the Back to the Future series a hoverboard is a levitating board that is used for travel. During the 1990s, rumours that were fuelled by director Robert Zemeckis spread suggesting that hoverboards were already real – just not allowed to be marketed.
 
Guinness World Records recognises a hoverboard as a device to lift a single passenger, whose contact with the board is solely with their feet. On the 25 August 2014, Alexandru Duru (Canada) achieved the incredible record farthest flight by hoverboard, travelling an amazing 275.9 m (905 ft 2 in) at Lake Ouareau in Quebec, Canada.
 
 
First glasses based wearable tech

Marty’s future kids wear headsets to make and receive calls and watch TV in Back to the Future II. This kind of virtual reality is not far off since the creation of Google Glass.
 
Goggles that can project images to provide an alternative for monitor displays have been around for a while now, but it was not until 15 April 2013 that the first truly “smart” goggles were introduced to a limited number of testers for the consumer public. Google Glass was essentially a smartphone, miniaturized and fitted within a set of glasses. Running on Google's own Android 4.4 operating system, a 640 x 480-pixel display beamed images into the wearer's right eye, with the device controlled by speech and touch. Combined with a five-megapixel camera, bone-conduction audio and even prescription-glasses services, Google Glass went on sale to the general public in May last year, but only in prototype form. In January, Google announced that it would stop producing Google Glass, but said it remained committed to the development of this intriguing technology.
 
Watch Google Glass user Philip Joseph Santoro achieve the Fastest time to eat a jam doughnut with no hands - you can actually see his point of view in the corner of the screen.
 
 
Highest score on Guitar Hero III

Marty McFly loved his guitars and played many along his various adventures, but in current 2015 people can even play music on a guitar-based game controller.
 
On 30 September 2010 at her home in San Francisco, California, USA, Annie Leung (USA) achieved the highest score on Guitar Hero III: Legends of Rock (Neversoft, 2007) by a female gamer when she racked up a score of 789,349 playing the GH classic ''Through The Fire and Flames''.
 
 
Most people participating in a dance videogame

Kids at the Café 80s mock Marty in the movie for using his hands to play an arcade machine, suggesting that Xbox Kinect-style gaming is normal in 2015, and it is:
 
The largest simultaneous dancing game routine involved 10,730 participants dancing to 'DJ Got Us Fallin' in Love' by Usher ft. Pitbull on the Dance Game Central 2 Xbox 360, in an event organised by Starfloor at Palais Omnisports de Bercy, in Paris, France, on 26 November 2011.
 
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First flying car

One prediction the sci-fi movie series got wrong was the prevalence of flying cars in 2015 – but the first flying car did make its debut flight in February 2009.
 
The ultimate off-roader, the Terrafugia Transition - the first integrated, fixed roadable aircraft (or flying car) - is a two-seater aircraft that, at the touch of a button, converts in just 15 seconds to a car that has the potential to be legally used on certain roads. The wings fold automatically and all the parts are in the vehicle. It will cruise at 100 knots, carry a useful payload of 430lbs burn 5 gallons an hour in the air and achieve 30 mpg on the road. In 2009, forty were ordered at a reported cost of around US$200,000 or £132,000. While there have been other so-called flying cars, this is the first that does not have to have any extra equipment or wings fitted to it in order to covert to an aircraft. The wings are integral to the car.
 
 

The fictional town of Hill Valley has cinemas that are screening "Jaws 19" in 3D in October 2015. In reality, there have only been three sequels.
 
Bob Gale may have overestimated the success of the Jaws franchise after the 1975 movie became the first film to reach $100 million at the box office.
 
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Highest grossing space travel movie

As popular as Back to the Future is, the highest grossing space travel movie of all time is Armageddon (1998), which had grossed $554m (£339m) worldwide by 01 October 1998.