Today, 21 October 2015 is Back to the Future Day.
It's the exact date that Marty McFly and Doc Brown arrive in the future, in the second 'Back to the Future' film, released in 1989.
The movie imagined a 2015 with hoverboards, flying cars, and self-tying shoes.
Some of the film's predictions have come true. Just like in the movie, we now enjoy plasma flat screens, live video-calling and technology for unlocking doors with a fingerprint.
Martin went to show some kids the film version of the 'future' to see what they think of it.