Sorry to interject in a non-movie title way, but when I lived in Leyton I used to laugh every time I hit the end of my road.
There was a small back-road to cross before I got to my house. I honestly can't remember the name of it now, but as the rest of the streets were named after cathedral cities I imagine it was something like Canterbury Street.

A very imaginative and witty graffiti artist had spray painted the city name out, and in untidy letters above written "Shit". Shit Street. It amused me enormously.

So a movie to redeem myself.
The Adventures of Buckaroo Banzai Across the Shit Dimension

The Unbearable Lightness of Being Shit (added on so not strictly by the rules)

Blazing Shits (Saddles)
Field of Shits (Dreams)
Dr. Strangeshit
A Hard Days Shit (Night)

The Year of Shitting Dangerously

The Shit Who Shot Liberty Valance

Shit On A Wire

How I Shit Your Mother

Shit In The Woods

To Shit And Die In L.A.

Koyaanisqatshit

Cabin In The Shit

The Perils Of Shit In The Land Of The Yik-Yak

Once Upon A Shit In America

D.W. Griffith's "The Birth Of A Shit"

Citizen Shit (Rosebud)

To Kill A Shitbird

Planet of the Shit

Hard To Shit (hard to kill)

Hard Shit (hard rain)

Universal Shit (universal soldier)

Sky Captain And The World Of Shit

The unbearable shittiness of being?

The man who shit Liberty Valance.
Who is Chuck Norris?

Eat, Pray, Shit

Fifty Shades of Shit

haha...well done you guys. :) It's good to start the day with a giggle.

I'm such a child right? lol

A Hitchhiker's Guide To The Shit

It's A Wonderful Shit

Shit On 34th Street

Reindeer Shit (reindeer games)

Riders Of The Purple Shit

The Shit From Laramie

Shitball Run

Cannonball Shit

Unshittable

I Shit On Your Grave

And don't forget John Wayne, in his last film:

The Shitist.

From Russia with Shit

The Shit for Red October

Goldshitter

Battleshit Potemkin

Schindler's Shit