See it. Great little flick.
The reconstructed main street of 1964 Erie, PA is a dead ringer for the main street of 1964 Hackensack, NJ. Whoever provided the guitars and amps did their homework. The more expensive ones are reissues, but everything is dead on period perfect, right down to the changeover from cream tolex to black tolex on Fender amps in 65.
Tom Hanks is a seriously talented guy.