Complex sentence: Edwards convinced Lee to perform at his theater, and she joined the cast of "The Ziegfeld Follies" in 1923, where she was hired by Al Christie to perform in his "Christie Comedies".
Split into simpler sentences: Edwards convinced Lee to perform at his theater, and she joined the cast of "The Ziegfeld Follies" in 1923. She was then recruited by Al Christie to perform in his "Christie Comedies".