I saw Samuel Jackson play guitar on David Letterman when he was promoting this film...his guitar teacher was Felicia Collins, who is one of the guitarists in Letterman's band.
Samuel sat in with the band and they played an old blues standard (can't remember which one). Can't say I was that impressed with Jackson's playing, but I thought that it was very cool that he learned how to play some for this movie part...he is one of my favorite actors. I guess for someone who had only been playing for six months or so he sounded pretty good.
Electrics: Epiphone Les Paul Standard (w/S.D. pups - JB-4/bridge, SH-'59 neck), Fender Fat Strat (Mexican), Squier Fat Tele, Squier '51, Agile Valkyrie III, Ibanez Artcore AF75, Washburn OS OE30 Delta King, Dean Vendetta XM (w/ Dimarzios, D-Sonic/bridge, Air Norton/neck), Silvertone archtop (late 60s/early 70s), Titan EG-1 strat, Gibson G-3 bass, Fullerton strat
Acoustics: Sigma DM-5 (Japanese), Silvertone archtop (early 50s), Yamaha FG-110 (Korean), Alvarez RD20 12 string, Silvertone (60s)
Amps: Alamo Capri (early 60s tube), Alamo Challenger (late 60s tube) Epiphone Valve Jr. Head (w/Peavey 1x10 cab & Realistic 2x6 cab), Fender Yale Reverb, Vox Pathfinder 15R, Marshall Lead 12, Behringer G110 V-Tone, Marshall MG15CD, Vox DA-5, Pignose 7-100, Marshall Bass 12