Restrictive collars are one of the mainstays of sci-fi films, and are probably available in private shops on the continent alongside gimp suits and butt-plugs.

Yeah, Japmax14, my boss has a TV that activates by his voice to radio. It has a woman's voice and is kind of Bond-like.
It is freaky how we have DVDs and life-like CGI here.
I am not sure if the restrictive collars will happen. I do know we have something like them for dogs.

Also predicted that we would have voice control over things like lights and tv.

Their reservations systems and computer networks were connected to each other
One up on smoke signals I suppose.

It's true: The Internet has existed at least since the early 70s with the development of TCP/IP.
The Internet AS WE KNOW IT (ie: the world wide web) did not exist until at least the early 90s, with the development of http.
The Internet shown in the film is both anachronistic and futuristic at the same time, as it utilizes a lot of technologies that already existed in 1986 (modem, databases, barcode scanner, interactive televisions), but not with such ease and convenience, and definitely not for home consumer use.
Incidentally, a type of home consumer barcode scanner was developed and sold in the late 90s during the first dot-com boom, called the CueCat. You could use it to scan/purchase products right off the screen by simply waving the scanner in front of it. The idea did not catch on and the company soon went bankrupt. The arrival of smart phones and QR codes a few years later rendered it obsolete.

I know what you're saying, but it isn't really the same thing! You couldn't order them with just few buttons at home like Ben Richards did in the movie.

Their reservations systems and computer networks were connected to each other.

but all it took was a visit to a travel agent or a simple phone call to make reservations.
What does that have to do with the internet? It has something to do with transportation and the telephone, but not the internet!

Maybe, but people weren't booking vacations on that was they?
Actually, they were, as hotel chains and airlines had computer reservation systems. (Remember the scene in
Wargames
where Lightman makes reservations to Paris on Pan Am.) It wasn't "self-serve" like it is now, but all it took was a visit to a travel agent or a simple phone call to make reservations.

I had no idea that there was internet in the 1960s. There wasn't even any Personal Computers back then. How can people access the internet back then?

"those things already existed by the time it was filmed."
Re: the 1960's internet. Maybe, but people weren't booking vacations on that was they? This film predicted it correctly when Ben booked a ticket for Hawaii on the InfoNet.

American Gladitor idea came from this movie.

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those things already existed by the time it was filmed.
CGI was used in The Black Hole, laptops did exist but they had butt ugly screens and were heavy. Internet has been around since the late 60's.

Plus laptops, internet and CGI.