Waking Up in Reno (2002)

Meet Roy & Candy and Lonnie Earl & Darlene--two close married couples who thought they knew one another, until they decided to take their dream vacation together. Now, they're hitting the road in a brand new, fully loaded SUV--and having the time of their lives--until a funny thing happens on the way to the Monster Truck Show in Reno, Nevada. Lonnie Earl, it seems, has a thing for Candy and when evidence of this starts to surface, this fun-filled road trip really heats up.