The ballroom and most of the hotel where the reunion took place was filmed on the Queen Mary in Long Beach. The same ballroom was depicted in the movie The Poseidon Adventure in 1972.
In an eerie coincidence, the reunion is for the class of '54. Both 'Michael Landon' and 'Victor French' died at the age of 54.
The classmates are wearing a class of 54 badge at the reunion. Victor French turned 20 in 1954, although the character Mark Gordon plays someone born in 1936.
The ages actors playing the "classmates" varied by as much as two decades between the oldest and youngest. At a high school reunion, the ages of everyone should be within a year of each other.
Trevor Steele has a pink bathroom.