Newspaper (or magazine, I guess) page designer. Or agate-person (the person who collects and formats all of that tiny type the sports scores and states are displayed in).
Ok if you have to explain the job there’s probably not a movie about them.
1408 was about a myth buster… I thought a lot of horror/ghost movies had them.
Optometrists
Slaughterhouse Five, both the lead, Billy Pilgrim, and his father-in-law are Optometrists.
Alan Alda’s character in Sweet Liberty, I think.
Was there a Honeymooners movie? Ed was, IIRC, a sewer pipe maintenance worker. At least that was what I gathered. He never talked about treatment, only about being ‘in the sewer’. Sewer pipes and porta-potties are interesting, but a tertiary treatment WTP is more complex, covers a fair bit of acreage, and often has fairly sceninc ponds.
As a bit of trivia, LA’s Hyperion plant was featured in many movies and TV shows. The pipes and tanks stood in for a lot of oil refineries and other industrial locations. The dunes surrounding it were used, among other things, for the opening credits of the original Monkees. And the underground tunnels were draped with cobwebs for Elvira to slither through for her opening credits. (Forgive me if I’ve mentioned this before.)
Ironically, Jennifer Aniston played a waitress.
What was the narrator’s profession in Fight Club?
Medical researcher
Accountant
Dog catcher
Mime
He worked at that car company. He went around the country and figured out sums…if the cost of settling out of court with all the people who got into accidents was lower than the cost of a recall, then they didn’t do one. And he worked for a major company.
This is a stretch for accountant, but didn’t Robin Williams’s character in “Hook” mention missing the sixties because he was an accountant? (I know, he’s meant to be a lawyer–evil corporate lawyer at that–when the movie takes place, but maybe he was an accountant earlier in life?)
Good one! I suppose Blair Witch also qualifies under that criteria. (although I was originally thinking the scientific Myth Busters on the Discovery channel as the profession)
What about Chasing Amy? Wasn’t the lead character a comic book animator? Or do I have that mixed up?
J.
D’oh! I thought he was in insurance.
Occupations that would probably make great movie roles, but seem underrepresented in film: Taxi Driver, Apostle, Anchorman, Cable Guy, Negotiator, Terminator, Wedding Planner, Constant Gardener, Horse Whisperer, Bone Collector, Ghostbuster, Dragonslayer, and Midnight Cowboy.
What? 
Proctologist.
I personally think we need way, way more constant gardeners.
What about a masseur/masseuse?
We actuaries used to feel slighted, until About Schmidt.
The two leads were an Inker and an Illustrator.
In My Cousin Vinnie, an auto mechanic saves the day… 
The mercenary doctor in The Wild Geese was a proctologist.
And Matthew Broderick was an entomologist in Godzilla
Whoever leaves that “inspected by xx” piece of paper in my clothes. I don’t think I’ve seen a movie about that guy.
A gynocologist ?
Dr. T and the Women.