Help my vocabulary: slogans, mottoes and tag lines

[uglybeech]

OK I never know what to call - I guess you’d call them catchphrases - in different contexts (e.g. in movies, or ads, books, etc.) I’m always fishing around for the right word (as you can see). Please help me out:

What should I call:

“Just do it”
“I’ll be back”
“I like Ike”
“All for one and one for all”
“Live from New York, It’s Saturday Night!”
“and that’s the way it is” (Cronkite)
“You look Mahvelous” (Crystal)
“Let them eat cake”

The words I’m usually choosing between are:

catchphrase, tag line, slogan, motto, etc. and there are probably better words I dont know.

[Chairman_Pow]

Well, let’s stop off at the ol’ dictionary.com to get started.

@slogan

1. A phrase expressing the aims or nature of an enterprise, organization, or candidate; a motto.
2. A phrase used repeatedly, as in advertising or promotion: “all the slogans and shibboleths coined out of the ideals of the peoples for the uses of imperialism” (Margaret Sanger).
3. A battle cry of a Scottish clan.

Hey, cool. I didn’t know it was a battle cry. “Just do it” would seem to fit here.

@motto

1. A brief statement used to express a principle, goal, or ideal. See Synonyms at saying.
2. A sentence, phrase, or word of appropriate character inscribed on or attached to an object.
   3.A maxim adopted as a guide to one’s conduct.

“All for one and one for all” fits here.

@catch phrase

A phrase in wide or popular use, especially one serving as a slogan for a group or movement.

“Live from New York…,” etc.

@tagline

An ending line, as in a play or joke, that makes a point.
An often repeated phrase associated with an individual, organization, or commercial product; a slogan.

This has been less helpful than I figured. Hopefully, it makes more sense to you now.

Specifically with film, a tagline refers to the non-title copy in an ad (“In space, no one can hear you scream,” “you’ll believe a man can fly,” &c.).