Scarlett Johansson and Channing Tatum, is best summed up by the next lyric of Frank Sinatra’s song.Let me play among the stars. Director Greg Berlanti’s romantic comedy, which imagines that Richard Nixon’s administration really did film a fake, backup moon landing in 1969, is a mystifying misfire all along the way from initial concept to end credits.Where his movie does achieve liftoff, however, is its charming pair of A-list leads, who are mostly immune to the deadly material.