
CBGB is about Hilly Kristal and his dive Club CBGB known for underground rock. The place was so small.
Some of the bands:
Ramones, Misfits, Television, the Patti Smith Group, Mink DeVille,The Police, The Dead Boys, The Dictators, The Fleshtones, The Voidoids, The Cramps, The B-52's, Blondie, Joan Jett & The Blackhearts, The Shirts, and Talking Heads, Iggy Pop, Beastie Boys.
Not sure I'd recommend the movie except to maybe those interested the subject. It's also a good representation of the 70's. Alan Rickman puts is a very good acting performance as Hilly Kristal.