Misc: What, apart from air & fuel, is filtered in a car?

Questions

sinatra starred in this musical version of "the philadelphia story."?

sinatra was once married to this actress, star of "the barefoot contessa."?

this comedian once said, "make yourself like frank. hit somebody."?

what film did sinatra pull from release after kennedy's assassination?

from 1956 to 1972 how many commercially released films did elvis appear in?