I often talk to myself while I work. I have fantastic arguments with myself about word placement and vocabulary.
When I get truly stuck for just the right word or phrase, movies start popping into my mind, where writing or scenes about words were involved.
Here are some of my favorites:
Throw Momma From the Train (1987)
Writer Larry Donner (Billy Crystal) is enraged over his ex-wife stealing his book and touting it as her own. He’s stuck on one famous sentence, which begins “The night was…”
Young Frankenstein (1974)
Dr. Frederick Frankenstein (FRAHNK-en-stin) has inherited the estate of his late grandfather, the late Dr. Victor Frankenstein, and has returned to Transylvania to see the property. He becomes obsessed with his grandfather’s work in “re-animation”, and has created a man/monster using the body of an executed criminal and a brain stolen from a lab. With the help of his assistants, Inga (Terri Garr) and Igor (Marty Feldman), the creature (Peter Boyle) is brought to life, but is easily startled at the sight of fire.
“Second syllable, little word… uhhh… zit! Zat! Zuh!”
Kate and Leopold (2001)
A 19th century Duke, Leopold Mountbatten (Hugh Jackman) appears in 21st century New York due to an involuntary trip through a portal in time. He meets advertising director Kate McKate (Meg Ryan), who thinks he’s a method actor with a screw loose. She casts him in a butter-substitute product commercial, and his poise, confidence, and diction are a surprisingly good fit for the commercial. His character and integrity, however, do not mesh well with the business focus of the modern advertising world.
Sitting in front of my computer one night, and stuck for a good opening, I began to mumble “Fresh, creamery butter. Is there anything more comforting?“. Without missing a beat, my husband called out from across the room, “This tastes like saddle soap!“.
Stranger than Fiction (2006)
Truly a wonderful movie. 
Harold Crick (Will Ferrell) is an auditor for the Internal Revenue Service, and his unmarried life is a predictable, orderly pattern of routine, honesty, and practicality.
Every morning, he brushed each of his 32 teeth 76 times; 38 times back and forth, and 38 times up and down.
He begins to hear a voice narrating every action of his life and ignores it, until one day, the voice says that Harold is going to die.
“Harold frantically grabbed his lamp. Harold, incensed, shook the hell out of it for… no apparent reason, smashed it on the ground, kicking it repeatedly. Harold took his Kleenex box and threw it across the room, then STORMED THE CLOSET!”
Crazy People (1990)
Emory Leeson (Dudley Moore) is an advertising executive who decides that he wants to bring truth to the advertising industry, and winds up in a mental hospital. His honest ads mistakenly go to print and become a great success. His company takes credit for his work, and ask Leeson to continue working while living in the hospital, and Leeson agrees, involving other patients to work on ads.
“FRNxT GHRT SONY GURM”.