An otherwise nifty heist caper... with an agenda to promote the British band SMALL FACES... has two fitting actors, old and young, both having starred in several crime b-pictures, beginning with William Lucas, who played every incarnation of criminal... from cold-blooded to cowardly from THE BREAK to CALCULATED RISK to PAYROLL... and the intensely vulnerable Kenneth Cope from JUNGLE STREET, THE CONVICT and THE DAMNED...
Herein, Cope is the crooked manager of the band, and Lucas has his number... an intense actor never using costumes but here he resembles Inspector Clouseau if originally cast Peter Ustinov played him more straight, and his anti-chemistry with the younger Cope works surprisingly well... yet they mostly work together by remaining apart...
One scene shows Lucas stealing the diamonds, practically in real-time, step-by-step for a suspenseful ten-minutes where it seems anything can happen, especially with detective duo Conrad Phillips and George Mikell garnering more sporadic screen-time than the first-billed crooks: but what's supposed to matter is a rushed ending where the band plays a song or two, and the previous dirty work means nothing...
A shame because the terrifically pulpy-titled DATELINE DIAMONDS ultimately wastes a potentially good villain AND cop duo, entangled in an interesting plot... all so a music group could get a number one hit, which never panned-out: at least not because of this mostly forgotten programmer.
