What is the 2005 film called for which Reese Witherspoon won an Oscar for her role as June Carter?

Explanation

Reese Witherspoon (born 1976) is an American actress. She is one of the most well-paid actresses in Hollywood. Her biggest commercial success came with 'Sweet Home Alabama' (2002). The role as June Carter in 'Walk the Line' (2005) was her next big success, for which she won an Oscar in 2006. She sang all the music in the film herself, and was afterwards offered a record deal by several labels. Another two of her films have titles from songs - 'Jack the Bear' (1993) and 'Just Like Heaven' (2005).