Complex sentence: His moving portrayal of Kelly's calm resolve not to abandon the relationship, and the touching reassurance of Katsumi, impressed audiences and critics alike; both he and Umeki won supporting actor and actress Academy Awards for the film.
Split into simpler sentences: His moving portrayal of Kelly's calm resolve not to abandon the relationship, and the touching reassurance of Katsumi, impressed audiences and critics alike. He and Umeki won supporting actor and actress Academy Awards for the film.