3D Glasses ?

I did a lot fo reading but still, there's something that i don't understand:
Every 3D movie has his own glasses or, it can be watched with an ordinary 3D glasses (Blue/Red)?
A little explanation would be great.

 

Each 3D technology is different. Some are blue/Red, Some are red/green.

Theater 3D is polarized.

 

So, there's two types: blue/red, red/green. And these two types fit for all 3D movies, or every movie has it's own glasses? Because I've checked in the store and was written on some glasses that they fit for 'that' movie.
I hope you understand what I'm sayin.

 

AFAIK, one set of red/blue glasses will work for all red/blue movies (provided that the lenses are on the same side)

We have a sheet of "Superbowl" MVA glasses that we found in the street that work with other 3-D movies that use the same technology.