KING SOLOMON'S MINES and its sequel, which take broad liberties with H. Rider Haggard's 1885 novel and its 1887 sequel. Yoram Globus and Menahem Golan were visionaries after all (yeah, I said it), but at the time few other films had the genius to use a highly respected book as an inspiration for their faux Indy efforts. Case in point, Gianfranco Parolini's THE SECRET OF THE INCA'S EMPIRE. Based on a novel titled THE SEARCH FOR THE BURIED CITY, author Gualberto Sanchez Alvino also helped pen the script, although that seems to be the bulk of his work at the time and while I admit I've never read the book, I seriously doubt you could call it "classic literature". In recent years Akvino has written a few books about writers, but I'm guessing his foray into adventure fiction was not very successful. Much like this movie.
Gianfranco Parolini (aka Frank Kramer) is an interesting director as his work is very hit and miss, particularly in his later days. Most folks would probably say miss, but I think IF YOU MEET SARTANA PRAY FOR YOUR DEATH (1968), SABATA (1969) and ADIOS SABATA (1970) are damn fine spaghetti westerns that, while they may not be the cream of the crop, are a long way from scraping the bottom. Parolini also directed the first four films in the very popular German/Italian James Bond knock-offs, the KOMMISSAR X films, that started off with KISS KISS KILL KILL (1965). Then came THE RETURN OF SABATA (1971) and everything goes to hell. Well, with the exception of the Michael Colby, Paul L. Smith Hill and Spencer knock-off WE'RE NO ANGELS (1975) and the stunningly inept, but hugely entertaining, King Kong knock-off YETI - GIANT OF THE 20TH CENTURY (1977), which is really required viewing for fans of Italian schlock.