My wife tells me I'm nit-picking, but it interferes with my enjoyment of a movie when I know a lot of money has been spent on getting things accurate and instruments are ignored. WALK THE LINE lists Martin Guitars in the credits, but both the Johnny Cash and Elvis characters play Martins in the 1950s which were obviously made after the mid-sixties. Martin didn't start using black binding and pick guards till mid-sixties (1965, if I remember correctly.)
This also happened in the Woody Guthrie movie where Woody (David Caridine)started off playing an old Gibson that was quite in keeping with the period, but when it got broken, he replaced it with a Mossman, which didn't exist till after his death.
Does this bother anyone else, or is my wife right?