Actor Daniel Day-Lewis was elected to the American Academy of Arts and Sciences in 2011, but he couldn’t attended last year’s induction ceremony because he was busy filming the Steven Spielberg movie “Lincoln.” But with the biopic behind him, Day-Lewis was free to attend this year’s induction ceremony at the Sanders Theatre in Cambridge on Saturday. He joined many of 2012’s inductees, who include anchor Judy Woodruff and Globe Editor Marty Baron. UMass grad Bill Cosby was also inducted during the weekend. He was elected to the academy years ago but like Day-Lewis was unable make it to previous ceremonies. Cosby had his own official induction on Friday and then ran down to South Carolina for a gig in Myrtle Beach. Guests and new members of the academy who attended Saturday’s ceremony got to hear from presenter Alan Alda and Day-Lewis, who read letters from George Washington and, not surprisingly, Abraham Lincoln. The film “Lincoln,” which is based on a book by local historian Doris Kearns Goodwin (also a member of the American Academy of Arts and Sciences), will be released later this year.