Happy 67th Chevy!
National Lampoon's Vacation (1983)
In this film, directed by Harold Ramis, Chevy plays the family patriarch Clark Griswold who decides to drive his family from Chicago to California for a family vacation.
This movie was actually written by none other than John Hughes and also starred Beverly D'Angelo, Anthony Michael Hall, Randy Quaid, John Candy, Brian Doyle-Murray, Euguen Levy and Christie Brinkley.
This movie is based on a series of novels written by Gregory McDonald.
Chevy stars as the title character, Irwin Fletcher, who is a newspaper reporter.
It also stars Joe Don Baker, Geena Davis, and George Wendt.
A sequel was released which in my opinion was not near as good as the original. There have been rumors that a prequel is in the works but I don't see that happening any time soon.
Spies Like Us (1985)
In this John Landis directed film, Chevy plays Emmet Fitz-Hume, who, along with Dan Akroyd's character, Austin Millbarge, end up accidentally becoming spies and get sent to Russia.
I don't understand why they never made a sequel to this gem.