Ben Stiller knows how to make some awesome father-son memories! The 51-year-old actor-director took his 11-year-old son, Quinlin, to watch his hometown New York Knicks in Manhattan on Monday. WATCH: Ben Stiller Talks 'Surreal' Prostate Cancer Diagnosis, and the Test That Saved His Life The adorable duo cheered on the home team from their courtside seats, with Quinlin even rocking a Knicks baseball tee and matching royal blue kicks. Madison Square Garden was filled with even more famous faces for the Martin Luther King, Jr. Day game.