Kuryakin bickers with Solo over how Gaby should be dressed. This refers to The Return of the Man from U.N.C.L.E.: The Fifteen Years Later Affair, where Kuryakin took up high-fashion designing after leaving UNCLE.
When there is a showdown at a casino, Napoleon Solo gets Andrea into his car and drives away, and she talks about how she always dreamed of someone saving her like Burt Lancaster, she also mentions Elmer Gantry.