I've looked all over for this scene and finally found it. Made in 1954, Nicky (Arnaz) and Tacy Collini (Ball) are going to be married. Nicky wants to save up money for a house, but Tacy dreams of starting off with their own home on wheels...a trailer. After the two are hitched, they hitch up their trailer and begin their honeymoon. The humor comes from several disastrous adventures they have while traveling, including Tacy's awkward attempt to cook dinner in a moving trailer, and a cliffhanging ride through the mountains that nearly destroys their marriage. Lucy was perfect as usual, and I die laughing every time I watch this.