Infection with the Lyme bacteria can cause this sort of internal vibration - a type of paresthesia (peripheral nerve sensation). When it's mild, you may first notice it at night when your body is quiet and still.
The supporting cast features James Caan as the young gambler, Charlene Holt, Ed Asner, Paul Fix, Arthur Hunnicutt, Michele Carey, and Christopher George. El Dorado was filmed on location in Tucson, Arizona and Kanab, Utah, and was shot in Technicolor. The paintings in the credits are by Olaf Wieghorst, who plays Swede Larsen in the film. The musical score was composed by Nelson Riddle.
El Dorado Photos. Movie Info. Having struck pay dirt with his 1958 western Rio Bravo, Howard Hawks more or less remade the picture twice in the 1960s. The first of these rehashes was El Dorado, with Rio Bravo star John Wayne back for more. Wayne plays a gunfighter who rides into El Dorado to link up with his old pal, sheriff Robert Mitchum (It's the big one with the big two! declared the film's advertisements).