Well, Twilight is now making people sick in the literal sense, and not just the metaphorical fashion. Dozens of theatergoers have reported having seizures during the infamous "birth" scene, which features cuts of intense gore juxtaposed with brilliant flashes of light. The result is a theater full of people mumbling and shaking, which is pretty much what I expected a Twilight audience to be anyway, so it sounds like a lateral move.

It is surprising that a PG-13 film can incorporate gore in such a fashion that it makes audiences physically seize. It’s actually shocking that this doesn’t happen more often. There have been reports of this type of fallout from Japanese cartoons (a la The Simpsons) and even a promotional video for the London 2012 Olympics, but nothing so widespread.

If Twilight was able to make people flip out, it’s pretty mind-blowing that several other visually-disturbing films weren’t able to have the same effect. Here are a few that come to mind.

Speed Racer

If Pokemon was able to cause a stir with its visuals, I would think that the Wachowski Brothers’ adaptation would have sent entire nations to an early grave with its non-stop chromatic assault during race scenes. Also, I’ve been told that a growing number of people have been developing averse reactions to Emile Hirsch, but that’s been unsubstantiated to this point.

If you ever wondered how you would fare if you were shrunk and trapped inside a pinball machine, give Speed Racer a spin and see for yourself.

Requiem for a Dream

It seems an unlikely fit for this list, but Requiem, in concert with its nauseating subject matter, features over 2,000 cuts, while a typical film its length utilizes only 600-700. The result is an effect that makes the film and its environment seem even less comfortable and more unsettling than the Twilight phenomenon.

Requiem for a Dream uses a technique that Aranofsky developed in Pi, where he lays dozens of lightning-fast edits on top of each other to break up the scene’s monotony. The technique harkens back to the French New Wave of cinema, but it also smells like a seizure just waiting to happen.

Moulin Rouge

While Moulin Rouge isn’t as aggressive in its editing as Requiem, the use of brilliant colors and spastic camerawork, most notably in the can-can scene, allows the viewer to feel like they’re being run over by chorus lines of dancers, all wearing flying and bright dresses. It’s unsettling even on subsequent views, presumably all the more so when projected on a theater screen.

Fear and Loathing in Las Vegas

This film can be expected to give viewers seizures the same way certain drugs would, if only because that’s the look they were going for in certain scenes. Director of Photography Nicola Pecorini used different effects like long tunnel shots, shaky cams, and melting images to convey the effects of individual drugs, an effect that any viewer of the film would have to admit is pretty successful. Light levels increase and decrease in shots, and LSD-related scenes offer up wide shots with melting images that morph from color to color.

Basically, you’re getting all the visual effects of drugs with none of the awesome feelings. That’s enough to make anyone seize.

Waking Life

In the most notable instance of rotoscoping (not counting those creepy Schwab commercials), Waking Life doesn’t offer a spastic presentation by any means. But its cinematography does offer up a non-stop shimmering effect, which, when coupled with shaky “camera” work and a lots of surreal imagery, is a subtle attack on the senses that can cause the brain to go into overload. I had to step out of the theater for a few minutes just because I was feeling sick, but a trip to the men’s room and some Sour Patch Kids cleared that right up.

The Blair Witch Project

Now, I’m no expert on what triggers a seizure (if I was, I would sit around all day making people seize), but I know that The Blair Witch Project, with its jerky camera work as a matter of course, made audiences sick to the point that theaters started posting warning signs because employees were sick of cleaning up vomit.

While this may not be the bright-light strobe effect that is known to kickstart seizures, I know several people (who were stoned when they saw the movie, mind you) who claimed they felt lightheaded and dangerously close to passing out. Could that just be the weed? Sure. I imagine if you gave someone enough weed, the Joy Luck Club could make them feel violently ill.

However, there were several reports of seizures during the films’ theatrical run, so there’s some quantitative evidence to support the inclusion of this film.

Click on the Gifs below and see if you get a seizure...

Click here for 9 ‘It’s Always Sunny In Philadelphia’ Plots That Actually HappenedCheck out 36 Bounce-Tastic Christina Hendricks Gifs

Check out these 17 Bounce-Tastic Sofia Vergara GifsClick here for Zooey Deschanel Hotness

Check out The Least Sexy Photo of Heidi Klum Ever TakenTake a look at these 10 Classic Topless Scenes