In an airport scene in this movie Steven Spielberg and George Lucas cameo as missionaries while Dan Aykroyd is official who walks the cast to plane What movie?

This sounds like the movie "The Blues Brothers" (1980).

Here's why:

* Steven Spielberg and George Lucas cameo: They play two missionaries in the scene you're describing.

* Dan Aykroyd is an official: He plays the role of "Mr. Fabulous", a security guard who guides the band to their plane.

* Airport scene: The scene takes place in a busy airport.

Let me know if you have any other movie trivia questions!