#54. Terminator 3: Rise Of The Machines
Terminator has become one of the most well-known film franchises of all time. However, in the third entry in the franchise, Rise of the Machines a very famous blooper appears which has been well documented by fans. During a scene where John Connor boards a plane the number on the plane is N3035C. However, moments later when the plane is shown as it lands the number reads N3413F.
Naturally, this means that they must have changed planes during the shoot and probably hoped no one would notice.