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 talks to the bakery clerk, the plate of rolls on the counter moves, depending on the shot. (00:57:20)
More quotes from Get Smart
Trivia: In the scene in which Max drives the convertible out of the museum, all three cars shown - the red Sunbeam Tiger from the museum, the gold Opel GT driven by Bernie Kopell, and the blue VW Karmann Ghia convertible - were all cars driven by Maxwell Smart in the original series.