Y'all. I'm a professional screenwriter (meaning I do this for a living). The logline posted above is terrible.
Do not listen to "screenwriting gurus" or anyone pretending to know they can teach you screenwriting if they're not working writers. Listen to the Scriptnotes podcast. Read scripts (google the name of the script + PDF). Watch great movies and television.
Lots of love, x Julie
RE: The Screenplay Logline - It's Your Pitch Tool!