Visible crew/equipment: In the Rock Ridge church scene before the dynamite bundle is thrown through the church window, the device used to break the glass is visible.
Continuity mistake: When Lamarr gets out of the cab at the Chinese theater there is nobody near the cab, but when the shot of him getting out of the cab is shown, a man has suddenly appeared on the right side of the frame.
Continuity mistake: When Mongo enters Rock Ridge on the steer, the cuff on the chain around his neck instantly switches from open end facing left to facing right in the next cut.
Continuity mistake: When Taggart approaches Mongo at the fire, he pats Mongo's back with his left hand, withdraws it to clap his hands, but the next shot shows Taggart's left hand still patting Mongo's back.
Continuity mistake: When Sheriff Bart asks Jim if he can shoot the dynamite from where they are, Bart's hands are on his hips. Quick cut and now his hands are wrapped around his gun belt, close to the belt buckle.
Continuity mistake: When Taggart is thrown onto the counter in the cafeteria brawl scene, he has food slopped on his stomach, but when he slides to the cash register, the mess of food is now on his chest.
Continuity mistake: When the townspeople are saying their goodbyes to Sheriff Bart, Mongo clobbers a man wearing a derby next to him and the man falls to the ground. The next shot the crowd is still densely packed, but the man Mongo struck is not standing, on the ground, or anywhere to be seen - he has disappeared.
Continuity mistake: When the banner rolls up, it stops with about three inches of material hanging down. When Bart goes to pull the banner down, it's completely rolled up.
Revealing mistake: As Mongo enters the bar, you can tell the background is a piece of scenery just outside the entrance; there is a wrinkle in the fabric at the floor.
Revealing mistake: After Bart's announcement, the preacher holds up a bible. As he does, you can see that it doesn't move like a bible that size might. Plus, after the hole is "shot", the cover splinters from the pyrotechnic charge goes off, showing it's a wooden prop.
Other mistake: As Charlie and Bart are starting to get up from the quick sand, the light reflector is jostled, thereby causing the light to jump.
Other mistake: When the Western fight breaks into the dance movie set, the background of the Western movie is seen, even though it was all several hundred feet away, on an outdoor set.
Suggested correction: This is entirely in keeping with the "reveal of the movie within a movie.
Of that, there's no question. I was pointing out that the sets for both movies were a distance apart...the Western backdrop should not have been seen.
Revealing mistake: Just before Mongo punches the horse, the rider's hands inch up on the rein. As Mongo swings, the rider jerks the rein, pulling the horse's head around as Mongo's fist approaches the horse's head.
Continuity mistake: In the fake Rock Ridge, Taggert kicks the doors of the Leather and Saddlery store, and it falls over. A moment later, the Leather and Saddlery storefront is back up and the doors explode.
Continuity mistake: As the taxi Hedley is in approaches Grauman's Chinese Theater, watch the movie title "Blazing Saddles" on the marquees. It moves slightly as the camera pans to keep the taxi in frame. Also, Hedley's suit and face are spotless, despite entering the taxi covered in whipped cream. And, it was afternoon when Lamarr got the cab, but dark at the theater. The studio and theater are only four miles apart.
Continuity mistake: After Mongo punches the horse and it's down, the snout is pointed toward the chest. In the close up, the head is at a more natural angle.
Revealing mistake: As Bart grabs the black king, watch his hands. He claps his hands around the king, draws the toward his body, and they dip partially down below the level of the table. When he does that, he opens his hands just enough to allow the piece to fall out of the camera's range. Then Jim pulls out a duplicate piece he had in his holster.
