It took Walt twenty years to talk Travers [P.L. Travers, author of the Mary Poppins novels] into giving him the rights for the picture and then she fought him tooth and nail all the way through it. She hated me, she hated Julie Andrews, she didn't think either one of us were right. After the premiere she met Walt in the lobby and said, 'All the animation has to go.' Walt said, 'Pamela, the boat has sailed.'
Van Dyke had four children with his first wife, Margie. The pair lived separate lives for years, before officially divorcing in 1984. The actor became involved with Michelle Triola, an ex-girlfriend of Lee Marvin, in the late 1970s. Trioia had been working as Van Dyke's agent's secretary when they first met. Van Dyke stayed with Triola for nearly 30 years, until her death in 2009. In March 2012, the 86-year-old actor wed 40-year-old makeup artist Arlene Silver.
In November 1959, Van Dyke made his Broadway debut in The Girls Against the Boys. He then played the lead role of Albert Peterson in Bye Bye Birdie, which ran from April 14, 1960, to October 7, 1961. In a May 2011 interview with Rachael Ray, Van Dyke said that when he auditioned for a smaller part in the show he had no experience as a dancer, and that after he sang his audition song he did an impromptu soft-shoe out of sheer nervousness. Gower Champion, the show's director and choreographer, was watching, and promptly went up on stage to inform Van Dyke he had the lead. An astonished Van Dyke protested that he could not dance, to which Champion replied: "We'll teach you". That musical won four Tony awards including Van Dyke's Best Featured Actor Tony, in 1961. In 1980, Van Dyke appeared as the title role in the first Broadway revival of The Music Man.