ay hello -- again -- to the summer of deja vu cinema. Over the next three months, remakes will dominate the cineplex. "Star Wars Episode III: Revenge of the Sith" kicks off the season Wednesday, bringing the most successful franchise in film history to a conclusion. Thereafter, the big trend for popcorn movie sees studios reviving pop culture "brands" from distant decades instead of trying to milk mileage from more recent hits. Hugh Hart takes a look at the summer blockbusters in the San Francisco Chronicle.