Deliberate mistake: When Max and 99 are in the air, they can be seen talking to each other. This is not possible (as proven on Mythbusters) even if you were yelling at the top of your lungs. The wind would make any noise unrecognizable, yet we hear them talking to each other just fine.
Get Smart (2008)
1 deliberate mistake - chronological order
Starring: Dwayne Johnson, Steve Carell, Anne Hathaway, Alan Arkin, James Caan
Continuity mistake: When Max and 99 are fighting Dalip on top of the bakery, Dalip punches a hole in the wall beside 99's head. When he body slams Max, the hole has disappeared. (01:04:55)
More quotes from Get Smart
Trivia: The original Siegfried, Bernie Kopell, makes a cameo as the driver of the Opel that nearly hits Smart. Unfortunately, other members of the original show were not able to make appearances: Don Adams (Maxwell Smart) - died September 2005. Edward Platt (Chief) - died March 1974. Robert Karvelas (Larrabee) - died December 1991.