For movie fans, October 21, 2015 is kind of a big deal.

Why? It's Back to the Future Day (Duh! Think, McFly. Think!) It marks the exact date when Doc Brown took Marty to a future where they don't need roads -- but do need hoverboards and Pepsi Perfect.

In honor of that milestone in time-traveling movie history, here's a ranking of Hollywood's 35 best trips through time.

"Back to the Future 30th Anniversary Trilogy" is available to own now on Blu-ray & DVD.