Investigations into the vehicle and what a flux capacitor is, are ongoing.
The Mount Isa Cinema received a loss of power to the building.
Owner Jodi Saunders said the driver got out of the car and asked for a Pepsi.
“He also wanted to know when we would be playing Jaws 19,” Jodi Saunders said.
Essex Police tweeted an 'appeal' for information.
And Surrey Police pictured an officer attempting to conduct a speed check after a car mysteriously disappeared.
The government's Department for Work and Pensions tweeted a bizarre message about workplace pensions with a somewhat tenuous link to the film.
Meanwhile the UK Parliament wondered whether Marty and Doc might visit the building to understand more about democracy.
Brands featured in 'Back To The Future II' like Nike and the newspaper USA Today are getting involved too.
USA Today will reprint its famous front page from the movie, which will wrap around Wednesday's actual newspaper.
Nike tweeted 'Future' star Michael J Fox overnight, too. The firm's futuristic trainers, a perfect fit for the movie's idea of hoverboard transportation, have since been created for real.
And Toyota has released a special video, below, showing Fox and co-star Christopher Lloyd discussing the advancements in technology between the film's fictional 2015 and today.
We'd have preferred a hoverboard. But otherwise, this too is pretty great. (credit:HuffPost UK)
Gull Wing Doors(02 of14)
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Yes, the Lego DeLorean has the doors that slide up from the sides and slot back neatly into place. (credit:HuffPost UK)
Dashboard Clock(03 of14)
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The DeLorean's dashboard clock is set to 'present time' (IE 1985) and its destination is set to 1958 - the exact date that the first Lego brick was made. (credit:HuffPost UK)
'Outatime' Numberplate(04 of14)
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In the first Back To The Future the DeLorean had this exact Californian numberplate... (credit:HuffPost UK)
Barcode Numberplate(05 of14)
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... but in Back To The Future Part II, the numberplate was a barcode. The set has that one too (they're replaceable). (credit:HuffPost UK)
Lifting Wheels(06 of14)
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The wheels on the Lego DeLorean can 'lift up' into flight position, but are still strong enough to hold up the car in drive mode. It's a lovely action, Lego nerds. (credit:HuffPost UK)
The Minifigs Fit In The Car(07 of14)
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... Just. (credit:HuffPost UK)
Flux Capacitor(08 of14)
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The drawn-on Flux Capacitor is great - even having a two-tone colour scheme for the red label. (credit:HuffPost UK)
The Doc Minifig(09 of14)
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Just look at it. (credit:HuffPost UK)
Engines(10 of14)
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The construction of the car's engines is pretty immense - like two sets of Lego legs. (credit:HuffPost UK)
'Hover' Technology(11 of14)
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The kit comes with specially made 'hovering' technology. (Transparent bricks). (credit:HuffPost UK)
'Mr Fusion' Home Energy Reactor(12 of14)
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Removable, but wonderful. (credit:HuffPost UK)
Lone Ranger/Back To The Future Part III Tie-In(13 of14)
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The new Lone Ranger sets are great - and with a simple adjustment fit perfectly into a Back To The Future Part III wild west megaset. (credit:HuffPost UK)
The Book(14 of14)
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The kit comes with a nicely printed, genuinely touching book with words from the Michael J Fox Foundation (which is receiving funds from the sale of the kit) and the two Lego fans who came up with the idea. (credit:HuffPost UK)