Wuchak
Sea adventure in Jamaica with Ryan and Quinn
Two American divers (Robert Ryan and Anthony Quinn) get a gig in Jamaica to find a sunken vessel with gold cargo while carousing and seeking out fair ladies (Mala Powers and Suzan Ball). Unfortunately, there are shady characters afoot (George Mathews). Woody Strode has a peripheral role.
"City Beneath the Sea" (1953) is an oceanic adventure/thriller that has the look and tone of Dinosaurus! (1960), but is thematically similar to "The Deep" (1977), "Into the Blue" (2005), "Into the Blue 2: The Reef" (2009) and "Fool's Gold" (2008).
The best of these, believe it or not, is Into the Blue 2, which was a direct-to-video release. This one is worthy too if you can acclimate to the early 5...