Flint is a city in the U.S. state of Michigan and is located along the Flint River, 66 miles (106 km) northwest of Detroit. As of the 2000 census, the city had a population of 124,943. The 2008 Census Bureau Estimate places the population at 112,900, making Flint the seventh largest city in Michigan. It is the county seat of Genesee County which lies in the Flint/Tri-Cities region of Michigan. Genesee County is also the entirety of Flint's metropolitan area, the fourth largest metropolitan area in Michigan. Flint is the largest city in the United States with a one-syllable name. Flint is most known for being the birthplace of General Motors, and the Flint Sit-Down Strike of 1936-37 that played a vital role in the formation of the United Auto Workers. It has also become a symbol of the decline in the auto industry. Flint area native Michael Moore created the 1989 documentary film Roger & Me dealing with the impact that the closure of several of Flint's General Motors manufacturing plants in the late 1980s had on Flint and the surrounding areas's population. The city is often mentioned, and featured at various lengths, in most Moore documentaries. The headquarters of Citizens Republic Bancorp (formerly known as Citizens Commercial and Savings Bank) has remained in its original location in Downtown Flint since its formation in 1871. Flint Charter Township is adjacent to the city on the west but is politically independent. Bishop International Airport is also part of the city, even though its surrounded by Flint Township. In 2010 Flint was awarded an energy improvement grant by the U.S. Department of Energy. A total of 43 grants were distributed under the American Recovery and Reinvestment Act to improve the nation’s energy security.