One of our favorites is "Doctor Who," obviously. (BBC/AP)

Unless you're reading this post from the future, it's Oct. 21, 2015 -- otherwise known as Back to the Future Day.

But time travel -- one of humanity's favorite science fiction topics -- is featured in plenty of movies as good or better than the above mentioned classic. You shouldn't limit yourself. Make a night of it.

Here are some of our favorites:

1. "Bill & Ted's Excellent Adventure"

Time travel, stoners, the 80's, a young and perpetually perplexed Keanu Reeves. This movie has it all. Need I say more?

2. "Primer"

If Bill & Ted is the quintessential brainless time travel movie, "Primer" might be the quintessential brainy time travel movie. It's an indie film that expects a lot from its viewer. But since you read my blog, you're probably a smart cookie.

The great thing about "Primer" is that it's realistic about time travel in a lot of ways: The first-ever time travel device is invented in a pretty believable way, it has annoying limitations, and people use it badly.

Even you smart cookies might need to watch this one twice.

3. "Predestination"

Okay, so this is one of my favorite movies of 2014. "Predestination" is based on a short story by Robert Heinlein called "All You Zombies --" which you should shut up and go read right this second. "Predestination" is a time travel movie with a big "twist", but honestly, having read the story long before I saw the movie, I think the film is just as enjoyable if you know what's going to happen -- maybe even more so, because you're bound to guess it before it's revealed.

The short story is chilling. The movie is haunting. Run, don't walk.

4. "13 Going on 30"

Sometimes time travel isn't sci-fi. Sometimes a time travel movie comes in the form of a goofy romantic comedy that lots of you probably avoided seeing because it features dance sequences and a fashion magazine and a giant shoe closet.

If this is the case, you have made a terrible mistake. This movie is delightful. And it has all the important time travel tropes you need -- questions about fate versus self determination, a character befuddled by modern technology, and lots of ’80s nostalgia.

5. "Looper"

"Looper" is great because it gives us what we want from a time travel movie: A whole bunch of paradoxes, neatly maintained and presented. "Looper" could go horribly wrong if it lost track of some of its threads, but it doesn't. I'm not really okay with what they did to Joseph Gordon-Levitt's face, but don't let that stop you.

6. "Star Trek: First Contact"

I know that "The Voyage Home" is, you know, the Star Trek time travel movie. But look, I'm biased. One of my earliest memories is of watching this movie when it came out on VHS. Besides, Picard is my captain. Haters to the left, please.

This movie is boss because it shows excellent use of time travel within the context of its franchise. We get to see how it all started -- no cheesy flashbacks necessary. Am I crying? You're crying. Shut up.

7. "Meet the Robinsons"

An orphaned boy genius travels through time to find his family. Am I still crying? Shut up.

But seriously: If you skipped this one because it was a "kids" movie, you missed out. It also features a T. rex and singing frogs.

8. All of "Doctor Who"

Okay, so "Doctor Who" is a television series -- not a movie. And maybe it would be safe for me to assume that anyone reading this blog post is already an avid fan. But my goodness, what if you're not?

"Doctor Who" has basically been running off and on for over 50 years (thanks, BBC) and it tells the story of an alien who travels through time and space. His face changes periodically, which is pretty convenient for a show that wants to run literally forever, and his personality shifts as well. You won't find another sci-fi series with so much variation in plot, characters, and even production quality -- and it's all fantastic.

These are but a random sampling of our favorite time travel adventures, and I hope you enjoy them. Let us know what we missed in the comments.

Party on, dudes.

Time travel movies

This is a non-scientific user poll. Results are not statistically valid and cannot be assumed to reflect the views of Washington Post users as a group or the general population.

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