"It's just as hard... staying happily married as it is doing movies"

In this quote, Tom Hanks is comparing the trouble of maintaining a successful marital relationship to the challenges of making movies. He suggests that both jobs require a lot of effort and devotion. Just as making a film involves many hours of effort, staying gladly married also needs continuous effort and commitment. Hanks might be indicating that both undertakings include browsing through various challenges and challenges. By relating the 2, he highlights the importance of putting in the essential work to maintain a strong and satisfying relationship, just as one would put in the work to create an effective movie.