It Happened at the World's Fair is a 1963 American musical comedy film starring Elvis Presley as a crop-dusting pilot.

Kurt Russell, Sandra Giles, Diane O'Donnell, and Memphis Mafia members Red West and Joe Esposito, had uncredited cameo appearances.

The entire hitchhiking scene, up to the point when Mike and Danny are picked up, was filmed on 5th Street near Pleasant Valley Road on the south side of Camarillo.

[N 4] Film reviewer Eugene Archer of the New York Times wrote, "Elvis Presley's budding dramatic talents have been neatly nipped in the Seattle story, which emerges as a dismal parody of the Metro-Goldwyn-Mayer musicals of old.

Burdened with a dozen tuneless songs and a plot requiring him to play guardian to a mercilessly cute Chinese waif, the crooner merely swivels ingenuously through a morass of clichés.

The 10-count-'em-10 tunes he sings may be cause for rejoicing among his more ardent followers but, stacked up proportionately against the skinny story in between, it seems at least three too many ... so many warbling interruptions upset the tempo of the yarn and prevent plot and picture from gathering momentum.

"[9] John L. Scott of the Los Angeles Times wrote that "it must be said that unless you're a Presley fan, the 10 songs he offers while plinking a guitar or ukulele can grow tedious, while the frivolous backgrounding story is turned on and off between tunes.