Upon completion of the Warner Brother Burbank Studio stage work, the Company moved to San Diego, where the construction crew had built the bar interior in a warehouse located near the airport. Filming commenced, first, with the American Ballet Theater's sequence in the proscenium theater. The Red Trolley sequence, then the bar interior, the wharf scenes (filmed both day and at night), and then, the Tijuana Mexican-USA customs crossing border scenes were filmed. The "vintage Mercedes Limousine" required being driven into Mexico, filmed in a "double fenced no-mans area" between the two countries. The studio film company had to have a million dollar insurance policy for the limousine, for the actors, transportation drivers, and film crew working on the outside fringes of the United States. Both governments had special Border Agents providing security and supervision of the "company members" filming the sequence. Access gates to the no-man area were the major obstacle for gaining entry for the limousine and actors, which had required advance permits from both government border approval. After entering Mexico, the Mercedes was escorted by Mexico City Police through Tijuana, and into the Mexican Custom's secured Border area. This Border sequence required two days of filming.