For decades, films were typically shot silent, with dialogue and all other sound dubbed afterwards. In the hectic and low-budget industry, this method was faster and more cost-efficient than recording live sound, particularly when using performers from different dialect regions; it also helped facilitate dubbing into other languages for the vital export market (for example, Standard Mandarin for mainland China and Taiwan). Many busy stars would not even record their own dialogue, but would be dubbed by a lesser-known performer. Shooting without sound also contributed to an improvisatory filmmaking approach. Movies often went into production without finished scripts, with scenes and dialogue concocted on the set; especially low-budget productions on tight schedules might even have actors mouth silently or simply count numbers, with actual dialogue created only in the editing process.