How It's made - Aluminum cans

The top comment on the video (at least when I checked in on it) said the following "I watched this whole video to see how the pull tabs were assembled on the top of the can–sincerely disappointed."

So, I'll warn you in advance that this video stops with the cans assembled - except for the top of the can being attached, something that happens after the can is filled with liquid. If that means you don't want to watch the video, move along.

The main reason I watched the video was to find out how the polymer liner is put into the can. Thankfully, that part was included - the polymer liner is sprayed in as a 'varnish' (but take that with a grain of salt because the whole video uses British language such as aluminIum) at about 3:40.