Movies where a character acknowledges they are in a movie

You know, reading over this thread, I get the feeling that Mel Brooks could really shock people by not breaking the fourth wall in his next movie …

[QUOTE=Spoons]
Yet another Mel Brooks film: Blazing Saddles.

When the chaos of Blazing Saddles gets out of control and escapes its sound stage on the studio property. It spreads to another sound stage where a musical is taking place, and the musical’s tuxedoed dancers end up fighting with the cowboys.

Shortly after that, Harvey Korman’s character ducks into a theatre showing–naturally–Blazing Saddles.
[/QUOTE]

Well before that there’s a scene with Cleavon Little riding through the desert while a Count Basie song is playing. The camera pans to reveal…the entire Count Basie Orchestra, on a bandstand, in the desert. ISTR Cleavon and the Count nod to one another.

I love that scene.

[QUOTE=Scuba_Ben]
The Producers (2005) does the same thing. So stay all the way through the credits.
[/QUOTE]

Actually, that was the last song in the Broadway musical as well.

From the screwball comedy Hi Diddle Diddle (1943):

In Trading Places, there’s a scene when the Dukes are explaining to Billy Ray Valentine about commodities trading as if he were 5 years old. Billy Ray looks straight into the camera with a “gimme a fuckin’ break” sort of expression.