I got this idea from a "Family Guy" sketch....

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Now, "Superman 4" was only used for that sketch, but films like "The Mask", "Wagons East", and "Nothing but Trouble" said the title of the film.

What other films have said their title?

One that jumped out right away to me is As Good As It Gets (1997).

At one point in the film Jack Nicholson asks, "Is this as good as it gets?"

Police Academy

Everyone says "Titanic" a lot in Titanic, lol.

The late 70's teen comedy cruising movie Van Nuys Blvd., the title is said several times as it's the street most of the film takes place on.

My Bloody Valentine ('81) is said.

Blue Monkey is said, though the film itself is about a giant insect.

Carrie, Cujo, and Christine are said.

The Boogens is said.

Cool Runnings

Porky's
Fellowship Of The Ring
Rocky
Bubba Ho-Tep

Well, more about Eve, in fact "All About Eve" later....

"A Beautiful Mind" was said in the film, but the scene was actually cut from the final version :(

I can think of three:

Think 'twas in the theme, too...

"All Dogs Go to Heaven"
"The Wizard of Oz"
"Phantom of the Opera"
"A Streetcar Named Desire"

Another easy one are the Halloween films.

"Halloween" is said in every film.

The Monster Squad

Can we include movies like "Singing in the Rain" or "Yellow Submarine" (Those were songs, but were used as movie titles).

Back to the Future
Star Trek (First Contact) Only Star Trek was said.
Mean Girls
Mrs' Doubtfire

"You've got to climb Mount Everest to reach The Valley of the Dolls"

"The hills are alive, with The Sound of Music"

"Oh chitty you chitty pretty chitty bang bang, Chitty Chitty Bang Bang we love you..."

"Can you tell me if there was an accident on Mulholland Drive?"

"I hearby christen this bus Priscilla, Queen of the Desert!"

My cousin Vinny.

Top Gun

A Bronx Tale

I have another one...

"Dude, Where's My Car"?

Where's your car, dude?

Looker