On May 19, 2012 bronze statue of Japanese dog Hachiko was unveiled at the train depot at Woonsocket Depot Square where Hachi: A Dog's Tale was filmed. This is an exact replica of the bronze statue of Hachiko which resides in front of Shibuya Station in Japan.
Parker uses Netscape 3.0 on Mac OS (classic) to browse the Internet on October 26, 1996 (the date of baseball 1996 World Series, Game 6). This is historically correct: the browser was released on August 19, 1996. The websites he visits appear to be large static images, which contain the whole page pre-rendered separately.
According to the movie's closing cards the real Haichko died in March 1934. The earlier movie, Hachiko Monogatari, and other sources state that he died in March 1935 (9 years and 9 months after Professor Ueno's death).