Now, where's my hoverboard?
Yes, today is "Back to the Future Day" - the date in the far future to which Marty and Doc Brown travel in BttF2. (For real this time. There have been plenty of hoaxes along the way.)
Although, if we're being really technical about it, he arrives at 4:29pm on the 21st, in California. With an eight-hour time difference between the UK and that part of the US, then, that actually means the key moment is actually very early tomorrow. Which is, of course, heavy.
It's always weird when we reach the dates associated with "far future" films: there was Judgement Day (Aug 29, 1997), and then 2001 (of course), and then "Transformers: the Movie" ("The year is two thousand and five..."), and now this. It's almost as if time passes...