Using the Martin M-130 seaplanes, Pan American Airways became the world's dominant transoceanic airline. The Clipper service gained a reputation as a dependable and elegant service that literally reduced the size of the world. On regular flights across the Pacific, the bulk of cargo would be mail, leaving room for usually eight to ten passengers who could stretch out in three large compartments, and a larger lounge/dining salon. During the 18-to-20-hour trip from San Francisco to Hawaii, passengers could enjoy cocktails in the lounge and formal evening meals. Although uncomfortable in comparison to current-day standards, passengers did not seem bothered by the loud noise of the engines that droned for the total flight time of about 60 hours spread over five days. So famous were the Pan American Clipper flying boats that even Hollywood joined in the chorus of praise by producing a movie named China Clipper, starring Humphrey Bogart.