For all the guff that "The Blues Brothers" gets from purists and Curtis Salgado, as a ten-year old kid when it came out, it was completely my introduction to something mysterious and exciting called "The Blues". The following years had many recognition moments in record store bins as I found records by the blues artists in the movie and I marveled at how they'd gotten so many "legends" to appear in this funny car chase movie with singing. Also:
"It acts as cultural preservation. We made sure the writers of the material kept their publishing rights. John and I took performers’ rights only. Every one of those songs we recorded remunerated the original artists 100% due to album sales. It was an ethical decision and the songwriters today and their estates have benefited from it."