The portraits gave Van Gogh his best opportunity to earn. He believed they were "the only thing in painting that moves me deeply and that gives me a sense of the infinite." He wrote to his sister that he wished to paint portraits that would endure, and that he would use colour to capture their emotions and character rather than aiming for photographic realism. Those closest to Van Gogh are mostly absent from his portraits; he rarely painted Theo, Van Rappard or Bernard. The portraits of his mother were from photographs.
Van Dyke began his film career by playing the role of Albert J. Peterson in the film version of Bye Bye Birdie (1963). Despite his unhappiness with the adaptation—its focus differed from the stage version in that the story now centered on a previously supporting character—the film was a success. That same year, Van Dyke was cast in two roles: as the chimney sweep Bert, and as bank chairman Mr. Dawes Senior, in Walt Disney's Mary Poppins (1964). For his scenes as the chairman, he was heavily costumed to look much older and was credited in that role as "Navckid Keyd" (at the end of the credits, the letters unscramble into "Dick Van Dyke"). Van Dyke's attempt at a cockney accent has been lambasted as one of the worst accents in film history, cited by actors since as an example of how not to sound. In a 2003 poll by Empire magazine of the worst-ever accents in film, he came in second (to Sean Connery in The Untouchables, despite Connery winning an Academy Award for that performance). According to Van Dyke, his accent coach was Irish, who "didn't do an accent any better than I did", and that no one alerted him to how bad it was during the production. Still, Mary Poppins was successful on release and its appeal has endured. "Chim Chim Cher-ee", one of the songs that Van Dyke performed in Mary Poppins, won the Academy Award for Best Original Song for the Sherman Brothers, the film's songwriting duo.
On January 27, 2013, at the age of 87, Van Dyke received the 2013 Screen Actors Guild Life Achievement Award. During his acceptance speech, Van Dyke reminisced about his work over the years as an entertainer and stated that his career has "been full of surprises and a lot of fun." He also praised actors working in the industry today, calling them "the greatest generation of actors" and telling them, "You've all lifted the art to another place now." He continued with a rhetorical question for his Hollywood colleagues: "Aren't we lucky to have found a line of work that doesn't require growing up? I love that." Van Dyke is the 49th recipient of the SAG Life Achievement Award, following 2012 honoree Mary Tyler Moore.