Michael Caine’s been in so many movies, he can’t quite recall them all. “I think I’ve been in 150 films, with substantial parts in 90 I can remember,” the “Dark Knight” star, 80, mused Monday at the Munich Film Festival, where he picked up the CineMerit Award. BMW hosted a dinner for Caine and 120 guests, and he was overheard saying he and his wife, Shakira, were headed to the Amalfi Coast for a week on a yacht before he begins even more movies, including “Eliza Graves” with Ben Kingsley and Christopher Nolan’s “Interstellar” with Anne Hathaway, Jessica Chastain and Matthew McConaughey. “This guy never sits still,” a guest quipped.