The Explanation:

The short answer is, they cut a scene. The longer answer is, they cut an insane, disgusting, tone-deaf callback to the original movie. In this deleted scene, Owen says they should mask their scent with dinosaur feces -- specifically her scent, because she's a woman and therefore heavily perfumed. Did we mention this movie was made in 2015?

Universal Pictures

Claire then proceeds to slather dinosaur droppings all over herself in front of Owen. Most insanely, the scene is played as flirtatiously erotic ... which, outside of the darkest corners of the internet, is rare for poop-based scenes.

Universal Pictures

And sure, there was also a big pile of dinosaur shit in the original Jurassic Park, but at least Laura Dern never provocatively rubbed it on herself while Jeff Goldblum leered at her like some creep about to ruin his leather pants.

The Explanation:

If you look closely, you can see that Q's computer is pulling up toxicology reports from autopsies while simultaneously scrolling through the periodic table of elements. Which is a thing Sony computers do, apparently.

Eon Productions

You can just barely make out that the toxicology report from their autopsies all contained the super-rare substance that the ring is made of, confirming they were all members of Spectre.

Eon Productions

Director Sam Mendes clarified this point, but in a testament to just how confusing this scene truly is, even he fucks up the details, calling the rare substance "Ridium" -- even though you can plainly see (if you have access to a magnifying glass) that it's actually called "Reidite."

He went on to say, "You can't tell that unless you freeze-frame on those graphics, but it does make sense." So there you have it. If the projectionists at your local movie theater didn't pause the screen and let you read that part, they really dropped the ball.

Just before he disappears, Reese witnesses John being grabbed by a random stranger, played by the guy from Doctor Who:

Paramount Pictures

When Reese arrives in 1984, everything's different -- Sarah Connor has a Terminator sidekick, and Skynet's master plan will turn out to be some kind of phone app.

Paramount Pictures

So what the hell happened? At the end of the movie, Skynet begins to take shape as a humanoid hologram who resembles the Doctor Who guy ... and that's all the explanation we get. We never find out how or why the past changed, and since the planned sequel to this sequel/prequel/remake was effectively terminated, we probably never will.

The Explanation:

Actually, the film's screenwriters answered this important question in the most appropriate place a writer can communicate essential plot details. No, not in the actual movie. In an interview. According to them, the humanoid version of Skynet is from another timeline and is traveling between parallel universes like an evil Jerry O'Connell. This alternate Skynet has seen these events unfold over and over, so it messes with our timeline to try to create a future where the robots finally win for good.

This may seem like gasoline on the already raging fire of convoluted wackiness that is the Terminator franchise -- but think of how many problems this would solve. Not only would it explain where this mysterious villain came from, it would also help unite all the various Terminator properties, since they all exist in distinct parallel universes.

Geffen Records

Insanely, this is never addressed in the movie but is supposedly referenced when Skynet-Man states: "I came a very long way to stop you" ... which didn't really come across because it could just as easily mean he bussed himself in from the suburbs that day.

When he returns, Thor knows exactly how to defeat the baddie, Ultron -- but who gave him this info? And why did he need Skarsgard there with him, especially since having an older Swedish guy just hanging around while you hot tub is usually a mood-killer?

The Explanation:

Originally the scene was much longer, and the idea was that Thor would communicate with The Norns, the fates of Norse mythology who would speak through Thor -- probably because having Chris Hemsworth hop in a filthy pond was cheaper than hiring more union actors. That's why Thor needed a wingman, so someone could speak to The Norns on Thor's behalf and ask them what the hell was going on.

Marvel Studios

While the scene is kind of awkward and would have helped push the movie to an almost unbearable length, it does provide much more detail on the Infinity Stones and ultimately makes Thor's decision to take off for clandestine bathing sessions seem more like an integral part of the story and less like a mid-life crisis.

There have been a lot of Disneyland-based movies over the years, but while The Haunted Mansion features an actual haunted mansion, and The Country Bears fulfills its promise of starring animatronic bear-like creatures that will haunt your nightmares until the day you die, Tomorrowland doesn't really have a Tomorrowland. The futuristic city they call Tomorrowland turns out to be not the future but an artificially created parallel dimension where all of our brightest minds have migrated to -- so fuck all of us dummies here on Earth, basically.

Walt Disney

But why "Tomorrowland"? Wouldn't "ElitistAssholeParallelUniverseLand" be more accurate? And even more confusingly, what about the Tomorrowland that's at Disneyland? We know there's a Disneyland in the world of this movie, because the opening scene literally takes place inside the It's A Small World ride. Say what you will about the Pirates Of The Caribbean movie, but at least it had the decency not to begin with Jack Sparrow lining up for Space Mountain.

Walt Disney

The Explanation:

Originally the parallel universe was going to have a direct link to Disneyland, with the Tomorrowland where you threw up as a child serving as a cover for the real Tomorrowland "in case anyone came snooping around." Not only that, but Walt Disney himself was going to be more of an intrinsic part of the story and be revealed as part of Plus Ultra, the secret society that created Tomorrowland, whose members also included Jules Verne and Thomas Edison.

Of course, having Walt Disney be one of the heroes of a Disney movie isn't just a little self-aggrandizing; it's distracting. So Walt's connection ended up on the cutting room floor. Plus, after years of unfounded rumors that Disney was a secret Nazi, having a movie suggest that he was the founder of an underground society that accepts only people they deem to be the purest probably didn't sit well with the higher-ups.