The Polaroid 33 uses the old type 80 pack film, which no longer made. Fujifilm has licensed the pack film technology, but only makes replacement film for the larger type 100 pack films.
If you want to find a working Polaroid, look for one of the following cameras that can use the Fuji Packfilms:
3v Folding Pack Cameras:
100 Series: Automatic 103,104,125,135
200 Series: Automatic 210,215
300 Series: Automatic 315,320,330,335,350,355,360,M60
400 Series: Automatic 420,430,440,450,455, Countdown 70, Countdown 90
Pro Models: 180,185,190,195
New Style Folding Cameras: EE100,EE100 Special, The Reporter, ProPack
All plastic Body:
Big Swinger, Colorpack II, Colorpack III, BigShot, Colorpack IV,Colorpack M6, Colorpack V, Minutemaker, Minutemaker Plus, Super Colorpack, Super Shooter.
For film, look for Fujifilm FP-100B or FP-100C packfilms in the 3.25x4.25 size
You are more likely to find the cheaper plastic body cameras at the thrift stores. If you do find the older, nicer folding pack cameras, be aware that a little mod might be necessary for the battery.
Batteries:
The folding Land cameras use an odd battery that has snaps on either end. Some of the Polaroid cameras use a 4.5v battery, which is hard to find and harder to hack a replacement, which is why I recommend finding a 3V camera. You can convert the camera from the special battery to use a small 2-AAA battery pack, or you can just clip the connectors off, making sure you mark the polarity on a bit of tape. Then tape the bare ends of the wire to the corresponding end of a 3v lithium battery.
The 100, 101, 102, 220, 225, 230, 240, 250, and 340 use one No. 531 (4.5 volt) alkaline battery.
The 103, 104, 125, 135, 210, 215, 315, 320, 330, 420, 430, 440, M60, and Countdown 70 all use one No. 532 (3 volt) alkaline battery. The 335, 350, 360, 450, M80, and Countdown 90 use two No. 532 batteries, one of which is used for the built-in electronic development timer.
All the rigid plastic cameras and new style folding pack cameras use two standard AA batteries
The above info was gleaned from the Land List
Polaroid Packfilm Cameras:
http://www.rwhirled.com/landlist/landhome.htm
I have how to load videos posted on my youtube channel:.
How to load a plastic Polaroid packfilm camera:
http://www.youtube.com/watch?v=ZExnzVx0VJ4
How to load a Folding Polaroid Packfilm Camera:
http://www.youtube.com/watch?v=j87o9WAdaYI