UnScramble this Word: i r a a p z n t?

Questions

1959 thriller has Cary Grant as an ad man mistaken for a secret agent?

Cole Porter musical set in the Montmarte section of Paris?

City that is 34 miles, or 54 km, from the 4077th.?

He conceived, directed, and choreographed West Side Story?

What does S.C.A stand for (Hint: medieval re-enactment):?