When Taylor falls down the stairs, he ends up laying on his left side, but when the camera cuts to a different view an instant later, he's suddenly on his back with his knees bent.
The sign painted on the window of Stacy's diner changes position, being backwards in one scene, so it's read correctly only from inside, and in another scene, it's forwards again, so those outside can read it correctly.
In the climax, Stuart has his hands restrained with handcuffs. But in the scene where he is lying down after he was shot by Jimmy, the handcuffs are gone. In the next scene he is in however, the handcuffs re-appear.