Misc: on which album did janis joplin belt out the porgy and bess tune 'summertime'?

Questions

category: directors: peggy sue got married, the conversation, bram stoker's dracula?

category: directors: taxi driver, cape fear, the color of money, mean streets?

category: first member of the original saturday night live to leave the show?

category: formerly david jones, his films include the man who fell to earth & the hunger?

category: his last film was the killers in 1964 before moving on to bigger things?