sentences:  Then, in 1930, he spotted future stars James Cagney, Joan Blondell, and Frank McHugh in the cast of a New York play called "Penny Arcade".Although Cagney turned out to be Warner's greatest prize, he was also the studio executive's biggest professional challenge.During his frequent arguments with Warner, Cagney often resorted to screaming the Yiddish obscenities he learned during his upbringing in the Yorkville district of New York City.