Revealing mistake: When Elwood drives the Blues Mobile backwards from the half-finished bridge, just as it flips you see something on the underside of the car on the far right. It's either a coiled spring or a tube with an explosive charge used to flip the car over. (02:10:50)
The Blues Brothers (1980)
1 video
Directed by: John Landis
Starring: Dan Aykroyd, John Candy, Carrie Fisher, John Belushi, Cab Calloway

Continuity mistake: In the deleted scene where Elwood goes into the manager's office to quit, right before he walks in the door he sets his briefcase down, it is slightly crooked and in the center of the floor. When he goes to leave it is sitting straight and further to the left. (00:42:45)
Police Dispatcher: Use of unnecessary violence in the apprehension of the Blues Brothers HAS been approved.
More trivia for The Blues Brothers
Question: Did John Belushi do all the dancing, especially the turnovers in church, by himself or was it a double?





Answer: It was a double, and the "making of" documentary on the DVD shows this.
David Mercier
To be fair, John did do a lot of flips and dancing as Jake; just not all of them in the movie.