LOS ANGELES (AP) — “Jaws” turns 50 this week, and its legacy of the summer movie blockbuster remains strong. The titles that have packed the most summer moviegoers into theaters since 1975 represent some of the best known films of the last half century, including five “Star Wars” movies, Pixar favorites like “Toy Story 3” and “Finding Nemo,” superheroes galore and both “Top Gun” films. They also include some surprises, and movies both less bombastic and less enduring.