New Hampshire-bred funny guy Adam Sandler and the cast of “Grown Ups 2” have been making the most of Massachusetts as production of their local comedy sequel comes to a close. On Sunday, actress Salma Hayek was at the Opera House to see “Billy Elliot.” And just one night earlier, Sandler (far right in inset) and Kevin James brought their kids to see “Annie” at the North Shore Music Theatre. Meanwhile, the younger “Grown Ups 2” cast members are having their own fun. Patrick Schwarzenegger , who appears in the film, spent the weekend tweeting shots of himself with his costars Taylor Lautner , Milo Ventimiglia , Alexander Ludwig , Paulina Gretzky , and David Henrie . . . . Speaking of Schwarzenegger, his rumored girlfriend (and Lautner’s ex), Taylor Swift , was spotted in Hyannis on Monday. She continues to hang with the Kennedys on the Cape.