Complex sentence: Her last major film was the lavish Jerome Kern biopic "Till the Clouds Roll By" (1946), in which Bremer has some good dramatic scenes and dances with Van Johnson, but after this, MGM began to lose interest in promoting her.
Split into simpler sentences: Her last major film was the lavish Jerome Kern biopic "Till the Clouds Roll By" (1946), in which Bremer has some good dramatic scenes and dances with Van Johnson. But after this, MGM began to lose interest in promoting her.