under $6 million. In March 1968 Annakin announced that Tony Curtis would star. The cast would also include Terry Thomas, Gert Fröbe, Eric Sykes, Walter Chiari, and Alberto Sordi. Finance was provided by Paramount and filming would take over six months in Rome, Monte Carlo and the Italian and French Alps. "I love the international flavor of it", said Annakin. Shooting Besides the studio work at the Dino De Laurentiis Cinematografica Studios, Rome and Lazio, Italy, principal photography took place from 31 March–May 1968 at a large number of locations: England, Paris, France, Monaco, Monte Carlo, Monte Gelato Falls, Treja River, Italy and Åre, Jämtlands län, Sweden. Most of the exotic locations were from the second-unit directors while studio process shots mainly inserted the lead actors into the scenes. Annakin had difficulties working with his American screen idol, Tony Curtis, and considered him, "brittle, self-centered and a bully". Curtis, however, enjoyed his time in Rome, one of the primary filming locations and became romantically linked to his co-star, Susan Hampshire. An excerpt from composer Ron Goodwin's cue, "The Schickel Shamble" became the theme music for the long-running BBC Radio 4 comedy series I'm Sorry I Haven't a Clue which later featured Willie Rushton as a regular panellist. Automobiles Tony Curtis is driving an Alvis Speed 20 (1932–36) named the "Triple S, Six-Sylinder Special", and Gert Fröbe is in a Mercedes SSK (1928–32). Terry-Thomas's car first is a Ware-Armitage, while his official entry is in a "Nifty Nine, Mark II". The other British team is in a Lea-Francis, outfitted with an array of ingenious contraptions including the Dawlish Klaxon, the Dawlish Periscope, the Dawlish Snow Stoppers, the Dawlish Snow Melter, bits to turn it into the Dawlish Super Snow Tractor, Dawlish Extending Foglamp and rocket boosters. Marcelo and Angelo are in a Lancia Lambda, while Dominique drives a Peugeot 201 ... and lurking in the background are a bullnose Morris Oxford (1919–26) and a Blower Bentley (1927–31). Ex-racer David Watson was in charge of the cars. "The automobiles should give me a good 30 percent of the comedy", said Annakin. Music The music was composed by Ron Goodwin. The title track, (called "Monte Carlo or Bust" despite the US name change to the film) is sung by Jimmy Durante. A piece of music playing during a German prison escape scene, called "The Schickel Shamble", has been used as the theme music