I made a quick clip on unloading the Holga 135, but I seem to have misplaced it. Here are the 7 simple steps it takes to unload your Holga 135. These directions will also apply to any simple 35mm film camera, like the Lomo Fisheye, or other plastic 35mm cameras.
Step 1. Press the rewind button on the bottom of the camera, this releases the winding mechanism.
Step 2. Flip open the crank on the rewind knob.
Step 3. Rotate the crank in a clockwise motion, with the camera lens pointing away from you.
Step 4. Keep winding until you hear and feel the lead end of the film snap into the cassette. The tension on the knob will reduce quite a bit.
Step 5. Pull up on the rewind knob to open the camera back
Step 6. Remove the 35mm film cassette.
Step 7. Take the film in to your film processor.
I am planning to reshoot this video, but you'll be able to rewind the film with these instructions.
Removing the Lomography Diana+ lens the first time takes a little bit of elbow grease. If this is the first time that you have removed the lens, it may seem that the lens is not going to move or that it is stuck. What you must do, is grasp the lens barrel very firmly, look at the dots on the barrel of the lens and give a very sharp, but quick twist. The lens only needs to move about a 1/4 inch, and it is only necessary to apply enough force to overcome the initial resistance. Be firm. Once you have removed the lens, it will get easier to remove with use.