The series takes a turn toward absurdity with James Bond’s trip to Las Vegas. Agent 007, portrayed by Sean Connery, is dispatched to Las Vegas to investigate a smuggling operation, believing Blofeld (Charles Gray) is behind it. A pair of male assassins also complicates the investigation. Jill St. John appears as a contact involved in the smuggling, and Lana Wood has a part as someone looking for an advantage at the casino. "Diamonds are Forever," released in 1971, brings Connery back to the franchise after four years—time during which George Lazenby had taken over the role. The film is enjoyable from beginning to end, but it introduces a level of silliness and cartoonishness that's more obvious than anything seen before. Also, the plot is difficult to follow in comparison to earlier films like “Dr. No,” “Goldfinger,” “Thunderball,” and “On Her Majesty’s Secret Service,” which were much easier to understand. It’s just one of those movies where you have to relax and appreciate the craziness. Lana Wood's beauty is memorable, though her role feels too short (and so does her wardrobe, haha). Jill St. John provides a good time and is quite attractive as well. Las Vegas certainly makes an excellent backdrop for a James Bond movie. You’ve got neon lights, tall hotels, casinos, swimming pools, desert landscapes, circuses, showgirls, tourists, and plenty of excitement. The film has a running time of 2 hours and was filmed in Las Vegas & the Nevada desert; Netherlands; Pinewood Studios near London; Palm Springs, Ca (Willard Whyte's Desert House); French Riviera, France (the opening sequence); and the Pacific Ocean. GRADE: B-

Source on TMDB