Final answer:
Ernst Lubitsch is the filmmaker described in the question, known for his films' sexual innuendo, visual wit, and light comic touch.
Step-by-step explanation:
The films described in the question, which exhibit a sophisticated handling of sexual innuendo, a refined sense of visual wit, and a light comic continental touch, can be attributed to Ernst Lubitsch. Lubitsch was a German-born film director and producer who rose to prominence during the silent movie era. His films, such as 'The Love Parade' and 'Ninotchka', are known for their clever dialogue, innuendos, and comedic timing.