Complex sentence: He was invited to an audition and landed the part; he left the sea, becoming a member of the company, and made his West End debut with the transfer of Brendan Behan's "The Hostage" in 1958.
Split into simpler sentences: He was invited to an audition, landed the part, and left the sea to become a member of the company. Lewis made his West End debut with the transfer of Brendan Behan's "The Hostage" in 1958.