What kind of electric guitar was used in black snake moan?

The guitar featured prominently in the film Black Snake Moan is a hollow-body electric guitar commonly referred to as a Gretsch 6120 or a "Chet Atkins" model, named after the country music legend who made the guitar famous. The guitar is recognized for its distinct "twangy" sound, which is characteristic of the rockabilly and early rock 'n' roll genres of music.