Complex sentence: The movie was given U.S. distribution through Warner Independent Pictures in 2005 on an $8 million budget; however, it grossed almost 10 times its budget at the US box office and won the Academy Award for Best Documentary in 2006.
Split into simpler sentences: The movie was given U.S. distribution through Warner Independent Pictures in 2005. Made on an $8 million budget, it grossed almost 10 times its budget at the US box office and won the Academy Award for Best Documentary in 2006.