Welcome to today's edition of Nerd Alert, where we have all the quirky, nerdy news that you crave in one convenient spot. What do we have in store for you on this wondrous Wednesday? Jurassic World gets mashed up with Guardians of the Galaxy, explore the real science of The Martian and Australians are making BASEketball an actual, real sport. But wait, that's not all! Find out what Batman v Superman: Dawn of Justice would look like if it was made in 1949 and watch an alternate beginning for Back to the Future Part II! Sit back, relax and check out all that today's Nerd Alert has to offer.

Jurassic World Meets Guardians of the Galaxy

This was bound to happen sooner or later. Since Guardians of the Galaxy was one of the biggest movies of last year, and Jurassic World is currently the biggest movie of 2015, and both blockbusters star Chris Pratt, Zenlike Productions has mashed them both up. Using footage from Guardians of the Galaxy and audio from Jurassic World, this video works surprisingly well. As it turns out, Chris Pratt himself has seen the mashup, giving it his colorful stamp of approval.

What if Batman v Superman: Dawn of Justice was made in 1949

Every Monday, Vulture presents a new Remix, which gives fans a different perspective on a new movie each week. Today, their team has tackled the highly-anticipated Batman v Superman: Dawn of Justice, showing fans what this superhero adventure might have looked like, if it were produced in 1949. Using footage from Batman and Superman serials, this video shows how this battle might go down, in black and white, without any special effects whatsoever.

How Back to the Future Part II Should Have Started

As you likely know by now, today, October 21, 2015, is Back to the Future Day, the day that Marty McFly and Doc Brown traveled to the year 2015 in Back to the Future Part II. How It Should Have Ended is celebrating this milestone in their own colorful way, with a new twist. This video shows both how Back to The Future should have ended, AND how Back to the Future Part II should have started. In short, this video is hilarious, and helps "explain" why all of the wonderful technological advances seen in Back to the Future Part II didn't actually happen.

Teens React to Back to the Future Part II

You didn't think we'd have just one Back to The Future entry on Back to The Future day, did you? We just had to double-dip after seeing the latest entry in the Fine Brothers' Teens React series, where teenagers react to footage from Back to the Future Part II. Thankfully, there is still hope for this generation yet, since most of these teens, many of which weren't even born when Back to the Future Part II came out, have fond memories of the original and its sequel. It is rather entertaining, though, when they realize that BTTF II takes place in the year 2015.

The Real Science of The Martian

A new web series has launched dubbed Science vs. Cinema, where astrophysics professor Andy Howell will break down the science shown in a different movie in each episode. Their first episode launched earlier this month, where he explores how scientifically accurate The Martian really is. The professor talks to both the filmmakers and scientists at NASA to give fans a better idea of how close to reality The Martian lands.

BASEketball Becomes a "Real" Sport in Australia

A Brisbane, Australia bar has taken the fictional sport invented in the 1998 comedy BASEketball and turned it into a real league. Of course, it isn't a professional league, but Brisbane Magazine reports that the league will run every Saturday at a local watering hole known as The Brightside, where songs by Reel Big Fish will be on repeat throughout the competition.

Fright Rags' Trick 'r Treat T-Shirts

Halloween is just around the corner, which means many die-hard horror fans will be revisiting Michael Dougherty's cult classic Trick 'r Treat. Fright Rags is celebrating this year by debuting a number of new t-shirts ($27), along with "sucker socks" ($12) and a limited edition gift set ($40) that includes a gift set exclusive t-shirt, along with a Sam mask and a prismatic sticker. You can check out their full collection on the Fright Rags website.

That wraps it up for today's Nerd Alert. Do you have any suggestions for future Nerd Alert columns? Hit us up on Twitter @MovieWeb and send us your suggestions, and it may even make it in the next edition. Check back next week for the latest installment of Nerd Alert.