God this guy is a blow hard...IT'S A MOVIE NOT A DOCUMENTARY! When I watch science fiction (Star Wars and Star Trek). I'm not getting annoyed by all of the inaccuracies that would be clear science or engineering problems. These kinds of video's annoy the hell out of me, since they ruin movies that are genuinely good!

Isn't this scene taking place in Elysium via a dream he is having..?? Not that other parts of this movie were horribly realistic, but you can't nitpick a scene for realism when it's supposed to be taking place in another plane of existence.

The same location is used outside the Elysium/hallucination sequences. I think he's using this shot just because it happens to have a better view of the wheat.

Regarding criticism that this is nitpicking - I think it's a bit of fun and an opportunity for a history lesson, not an argument that the movie is bad because it uses historically inaccurate roads.

Not that I'm nitpicking his nitpicking, but I fail to see how a lack of modern pesticides should result in a field full of weeds.

weeds are pests!

"A critic is right about what's wrong, but wrong about what's right." -G.K. Chesterton

Err, because modern pesticides kill weeds. They are used because if you don't use them, a lot of the resources in the soil are used by, well, weeds. Because that's what grows when you don't use pesticides.

However, if you did want to nit-pick his nit-picking you could point our that the very tall wheat of ancient times wouldn't have allowed many weeds to grow as they would drown out the light for competing plants. So the weeds he's talking about are a product of the shorter wheat he's saying would be inappropriate. He can't have it both ways...

Go to Ostia Antica, the ancient (i.e. gladiator-era) port of Rome. It lay buried in accumulated silt for centuries but has relatively recently been excavated and is a beautiful and wonderful site to visit. If you go you'll see stone-paved streets that have never had a car drive on them, only gladiator-era horse-drawn wagons, and they have parallel ruts for the wheels of those wagons and aren't worn in the middle.

Are you getting at the distinction between herbicide and pesticide? I was going to agree but apparently herbicide is considered a specific type of pesticide, and weeds are a specific type of pest. You learn a lot through nitpicking.

http://en.wikipedia.org/wiki/Pest_%28organism%29

Is it me or were you expecting him to mention the size of the wheel tracks? I imagine wagons would have been made of wood and very narrow, but the tracks are very wide, obviously because they were made by tires.

Is that something wrong with this video?

It's the wheels that cut into stone and leave deep wheel ruts in less solid surfaces, but his point that you don't get the distinctive modern rubber tyred vehicle look stands... the horse path between the wheel ruts would stop grass growing in exactly the way that any other walked on grass doesn't grow.

If you have a look at these photos you'll see what marks you would expect from horse drawn carriages:

http://equineclub.wordpress.com/2012/02/12/third-quarter-electives-week-2012/

I also found some older photos:
http://www.kakitches.com/movies-tv-shows/oregon-trail-wagon-train.html

You're right. I stand corrected. At first I thought this might be an example of an improper usage that is so common it becomes accepted but according to the EPA at

http://www.epa.gov/opp00001/about/

"Though often misunderstood to refer only to insecticides, the term pesticide also applies to herbicides, fungicides, and various other substances used to control pests."