Step 1 : Introduction to the question "Which film marked the screen debut of William Shatner?"
"The Brothers Karamazov" is based on a novel by Fyodor Dostoyevsky. Set in 19th-century tsarist Russia, the film centers around four brothers who scheme against their cruel and lecherous father, played by Lee J. Cobb. William Shatner played the saintly younger brother Alexey and this marked Shatner's debut on the big screen. The critically acclaimed film was originally released in 1958 and garnered Academy Award nominations that year. Source: Oldies.com