The British film industry emerged in the late 19th century, with over 30 film studios established in London by the early 1900s. However, as American studios began producing longer, more expensive and heavily marketed feature films, British production declined to fewer than 40 films per year by 1925. In response, the British government established a quota system requiring distributors and exhibitors to meet a minimum quota for British-made films, doubling production by the end of the decade. While this boosted the industry, it also led to many low-budget "quota quickies." The industry continued to struggle but received a boost during World War 2 with rising cinema attendance. In more recent decades British films have found success with projects like Bridget Jones' Diary