This is not the first time Mary-Kate and Ashley play sisters called Riley and Chloe. In their movie "Winning London" from a year prior, Mary-Kate played Chloe Lawrence and Ashley played Riley Lawrence. The girls liked the names enough to reuse them, only this time, they swapped first names and used a new last name. In "So Little Time," Mary-Kate plays Riley Carlson and Ashley plays Chloe Carlson.
Second time Eric Lutes plays the father of Mary-Kate and Ashley Olsen's twin characters. The first time was in the film "Switching Goals" (1999).