The house on Westward Beach Rd., Westward Beach, Malibu (CA), in the final scenes also appears in the final scenes of Un bacio e una pistola (1955) and Che fine ha fatto Baby Jane? (1962).
Slavin drives a 1950 Studebaker Champion.
In the scene where Donovan waits for Tate outside the bank, a Helms Bakery delivery truck can be seen in the background.