“Operation Seawolf” (** out of four) was a a vaporously generic WWII movie set towards the end of the war in which a grizzled submarine commander (Dolph Lundgren) was called back to lead a group of skippers on a German U-boat to attack NYC while various American military (Frank Grillo and Hiram A. Murray) plot out their return defense attack. Highly routine story covers all-too-familiar territory and is dressed up with a big-name cast but Lundgren is wooden as usual and Grillo is wasted once again in an easy-paycheck role. Film’s CGI effects are mostly tacky but there are some impressive external and aerial shots.