By Angie Martoccio In August 1977, Dennis Wilson released Pacific Ocean Blue, the late Beach Boys’ first — and only — solo album. Now, nearly 50 years later, one of the songs is getting its due. The Pacific Ocean Blue highlight “Rainbows” has been featured in two releases this month: the sci-fi blockbuster Project Hail Mary and the HBO series DTF St. Louis. It plays in the former when Ryan Gosling’s character, the teacher turned astronaut Ryland Grace, is describing Earth’s beauty to his adorable alien friend Rocky. It fits perfectly in Phil Lord and Christopher Miller’s film, alongside songs like Harry Styles’ “Sign of the Times,” Neil Diamond’s “Stargazer,” and the Beatles’ “Two of Us.” The wonderfully weird DTF St. Louis — starring David Harbour, Jason Bateman, and Linda Cardellini — aired its fifth episode, “Amphezyne,” on March 29.…