It does, yeah (although doesn't include the price of 3D glasses). This was at an out of London cinema, thankfully. In the center of town you can easily pay $20+ pp.
Are you paying that right across Sweden? If so, how awful :-(
$20/£12.20 was for the 3D version (where you can borrow glasses - do you have to buy yours?). I checked, and in smaller towns the price seems to be $17.50. The 2D version (which isn't available everywhere) is only $16/£10. That's actually not much more expensive than the UWest London prices reported by mseebach.
Glasses cost about 80p per person. You also pay extra for the privilege of seeing something in 3D, but prices for everything are generally cheaper outside of London.
Are you paying that right across Sweden? If so, how awful :-(