Step 1: Gather the following tools and items...
>1 roll of 35mm film (in a metal container)
>Scissors, pen, knife or a hard and flat metallic item
I only had to use scissors, but it took a while to do the job.
Step 2: Remove film from roll
Step 3: Break open the roll canister
Step 4: Remove the spool
Remove the spool from the canister and cut out the tape and the film.
As you do this, look closely at the spool to check for any possible damage.
Step 5: Conclude + Epilogue
Remember to use tape to attach film onto the spool whenever you use it.
And please REUSE or RECYCLE!! You will end up with heaps of film and metal bits in the end which can be used for other projects and recycled. Do your planet a favour.
I didn't want to throw away the metal container so I reuse it as a bookmark! (I use the film for this purpose as well) I only had to flatten it and smoothen the sharp bits to use it.