Complex sentence: She began her career as a dancer in West End music halls, making her film debut in "How's Chances?" (1934) in a small part, and had a larger role in another 1934 film, "Get Your Man".
Split into simpler sentences: She began her career as a dancer in West End music halls. Walsh made her film debut in "How's Chances?" (1934) in a small part, and had a larger role in another 1934 film, "Get Your Man".