Question: What nationality are both Jeff Celentano and Norman Z. McLeod?

Context paragraphs:
Isn't It Romantic? (1948 film): Isn't It Romantic?  is a 1948 film from Paramount Pictures, directed by Norman Z. McLeod and starring Veronica Lake and Billy De Wolfe.  Supporting actors included Mona Freeman, Richard Webb and Pearl Bailey.  Although it takes its title from a 1932 song by Richard Rodgers and Lorenz Hart, it is based on a novel called "Gather Ye Rosebuds" by Jeannette C. Nolan.

Jeff Celentano: Jeff Celentano (born May 24, 1960), also credited as Jeff Weston, is an American actor, screenwriter, and director.  As a character actor, Celentano has starred in such films as "", "Puppet Master II", and "Demonic Toys".  In 1994, he turned to directing with his first short film, "Dickwad".  He also directed "Under the Hula Moon", "Gunshy", and most recently "Moscow Heat".  Celentano is an acting teacher and is the Executive Director of Drama at The Performer's Academy in Laguna Woods, California.  Celentano was born and raised in Pemberton, New Jersey.  He has been married to the actress Musetta Vander since 1988.

Norman Z. McLeod: Norman Zenos McLeod (September 20, 1898 – January 27, 1964) was an American film director, cartoonist, and writer.

Many Happy Returns (1934 film): Many Happy Returns is a 1934 American Pre-Code Paramount Pictures comedy film directed by Norman Z. McLeod and starring Gracie Allen, George Burns, and George Barbier.

Swing Shift Maisie: Swing Shift Maisie (a.k.a. Swing It, Maisie) is a 1943 romantic comedy film directed by Norman Z. McLeod.  It is the seventh in a series of 10 films starring Ann Sothern as Maisie, preceded by "Maisie Gets Her Man" (1942) and followed by "Maisie Goes to Reno" (1944).  Her co-stars are James Craig and Jean Rogers.

Never Wave at a WAC: Never Wave at a WAC is a 1953 comedy film directed by Norman Z. McLeod, and starring Rosalind Russell and Paul Douglas.

If I Had a Million: If I Had a Million is a 1932 American pre-Code Paramount Studios anthology film.  There were seven directors: Ernst Lubitsch, Norman Taurog, Stephen Roberts, Norman Z. McLeod, James Cruze, William A. Seiter, and H. Bruce Humberstone.  Lubitsch, Cruze, Seiter, and Humberstone were each responsible for a single vignette, Roberts and McLeod directed two each, and Taurog was in charge of the prologue and epilogue.  The screenplays were scripted by many different writers, with Joseph L. Mankiewicz making a large contribution.  "If I Had a Million" is based on a novel by Robert Hardy Andrews.

Sooky: Sooky is a 1931 American Pre-Code adventure film directed by Norman Taurog and written by Joseph L. Mankiewicz, Norman Z. McLeod and Sam Mintz.  It is a sequel to the 1931 film "Skippy".  The film stars Jackie Cooper, Robert Coogan, Jackie Searl, Willard Robertson, Enid Bennett and Helen Jerome Eddy.  The film was released on December 26, 1931, by Paramount Pictures.

The Powers Girl: The Powers Girl, sometimes retitled Hello, Beautiful, is a 1943 musical comedy film about women employed by John Robert Powers' modeling agency.  Starring George Murphy, Anne Shirley, and Carole Landis, the film was directed by Norman Z. McLeod and based upon the book by John Robert Powers (played by Alan Mowbray in the film).

Public Pigeon No. 1: Public Pigeon No.  One is a 1957 comedy film directed by Norman Z. McLeod.  It stars Red Skelton and Vivian Blaine.

Supporting paragraphs: Jeff Celentano Norman Z. McLeod
Answer: American