Oh! ?THAT movie. ?”Little Miss Sunshine”.

Well, obviously, that’s a different story. But the same rule applies: ?no spoilers, don’t give away the ending.

So something like:
A dysfunctional family of losers takes a cross-country trip in a barely functioning VW bus so their plucky seven-year-old daughter can participate in a beauty pageant.
(26 words)

The daughter getting the “call” to participate in the pageant is the inciting incident. ?But she’s not the sole protagonist; it’s an ensemble film about the whole family, their failed dreams and failed ?relationships.

[FYI: Loglines for existing movies, the usual practice is to post them under the “Classics”. ?And name the movie.]

The logline has the makings for an interesting story, ?a character with a dream and a flaw that seems to prevent her from attaining it.

However, a logline is about objective goals (winning the beauty pageant), not subjective needs (transforms into his/her higher self). ?And a logline should never contain a spoiler, a give away as to how the story ends.

So:

A spunky but plump girl pursues her dream of winning a beauty pageant.

Or to enhance the dramatic conflict, maybe something like:

A spunky but plump girl pursues her dream of winning a beauty pageant in spite of universal ridicule and rejection.

(Yes, all may end well, and her family may rally around her in the end, but for maximum dramatic effect, ?the story needs to start from a baseline of opposition, ridicule, rejection on the part of family, friends, strangers–everyone.)

fwiw