The brewing stage adaptation of the 1951 MGM movie-musical “An American in Paris” has booked its Broadway home, scheduling a spring 2015 opening at the Palace Theater, which is soon to be vacated by T. The Addams Family (Broadway) repro Windowcard 14" x 22" An American in Paris Music Pops Film Winner of 6 Oscars and ranked among the American Film Institute’s 100 greatest American movies of all time, An…