Ruby tells Shawn her favorite episode of the show: "Did you see the Sun Rise? - Second favorite episode. - Did you see the Sun Rise: Part two? Actually, reverse those two."
The matchstick bridge model Higgins is building is a version of the bridge built by British POWs in this movie, and Higgins claims to have been part of the army unit that built the real bridge the movie is based on. Magnum blowing up the model bridge also mirrors the end of the movie.