Earlier this year Kodak announced that it was discontinuing its Kodachrome slide film because of lack of demand.

Avoid placing ticks in black film containers or using cellophane tape to mount the tick to paper, a note card or a slide if it needs to be identified or tested.

That film, bizarrely for what was in effect a slide-show with lots of charts, did well at the box office and won two Oscars (although one was for a song).