Complex sentence: A second cousin of the Mexican actresses Dolores del Río and Andrea Palma, he entered films in 1917 in bit parts; and he supplemented his income by working as a singing waiter.
Split into simpler sentences: A second cousin of the Mexican actresses Dolores del Río and Andrea Palma, he entered films in 1917 in bit parts. He supplemented his income by working as a singing waiter.