Complex sentence: Cliff's younger brother Tim (William Holden) is worried because he cannot afford to marry his girlfriend Peggy (Jane Bryan) and increasingly disillusioned about being able to make a position for himself in the world honestly.
Split into simpler sentences: Cliff's younger brother Tim (William Holden) is worried because he cannot afford to marry his girlfriend Peggy (Jane Bryan). Tim is disillusioned about being able to make a position in the world honestly.