Thursday Morning Riddle

I’m a layer that floats on the liquid below;
Educational strips; or to shoot video;
The old cameras need me, but digital, no;
And a movie that theatres are ready to show.

Who am I?

UPDATE: Riddle solved by Asher. See comments for answer.

3 Responses to “Thursday Morning Riddle”

  1. Asher Says:

    Film

  2. Bill Says:

    FILM is correct. Way to go, Asher!

  3. Let Me Watch This Name Says:

    Letmewatcththisname…

    major post. i appear forward to reading through extra. cheers….

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