When Maggie Taylor forgets the kitten's name, it was not a part of the script. Mae Whitman actually forgot the kitten's name and stayed in character. The director thought that it was so cute that he kept it in the movie.
The school that was used for the scene where Jack and Melanie find their children's class had already left is a private college called the New York School of Interior Design or NYSID. The red front doors were added for the filming.
The press conference scene where Jack confronts the NYC Mayor is supposed to be in City Hall in Manhattan but was actually filmed in Brooklyn Borough Hall which is the office of the Brooklyn Borough President.
Cast mates Michelle Pfeiffer, George Clooney, & Joe Grifasi are also "Batman" Series alumni - albeit in separate movies. Pfeiffer was Catwoman/ Selina Kyle in "Batman Returns"; Clooney was Batman/ Bruce Wayne in "Batman & Robin"; Grifasi was The Bank Security Guard in the opening sequence of "Batman Forever".
The film features many uses of the song "One Fine Day" right throughout including Composer James Newton Howard's score which serves as the love theme for Michelle Pfeiffer and George Clooney's characters.
After this film, James Newton Howard swore off doing any more comedy scores after the slew a comedy scores that had been hired or offered to do which had also included "Space Jam" which had come out a month prior to this film and subsequently had given his assignment of the Jim Carrey comedy "Liar Liar" to his friend John Debney with Howard still retaining credit for writing themes for the movie not only due to that but also he was overbooked with as many is five to six projects at a time which he also had to assign to other composers but still wrote the themes for which included "Dante's Peak" and "Rich Man's Wife" with John Frizzell taking over those films for him and the Eddie Murphy action-thriller, "Metro" with Steve Porcaro formally of the group, Toto taking over. Howard however would begrudgingly give in to doing the Julia Roberts' hit comedy "My Best Friend's Wedding" replacing Alan Silvestri due to a scheduling conflict and "Father's Day" starring Robin Williams and Billy Crystal for his friend and collaborator Ivan Reitman in 1997.
This is the second film that Amanda Peet would appear that was produced and released by Twentieth Century-Fox in 1996. The other was "She's The One" for Fox Searchlight which was released right after the studio released the years' blockbuster hit, "Independence Day" Directed by Roland Emmerich for which Peet would co-star for in "2012" in 2009, 13 years after this released ironically also during the Christmas holiday season as this film was.
Thanks to the performance in this film, Alex D. Lenz would eventually star in "Home Alone 3" taking over the franchise for Macaualy Culkin for Fox which would be released a year later in 1997 almost around the same time this film was released by the studio.
This film contains 5 actors who starred in comic-book movies: George Clooney in Batman and Robin (1997) one year later, Michelle Pfeiffer in Batman Returns (1992) four years prior, Joe Grifasi in Batman Forever (1995), and Michael Massee in The Crow (1994) two years prior. While Clooney played the the hero Batman in his comic-book film, Pfeiffer and Massee played the villains Catwoman and Funboy in theirs also Mae Whitman played in another comic book movie Scott Pilgram vs the world...
This is the second film featuring Mae Whitman that was released by Twentieth Century-Fox in 1996. The other film was the blockbuster hit for the studio, "Independence Day" which was released during the Summer on July 4th and this film was released during Christmas time.
This film was the fifth collaboration between Director Michael Hoffmann and Composer James Newton Howard, which they worked on the films Promised Land, Some Girls, Restoration and The Emperor's Club, which is their final collaboration to date.
While the film was in production, Entertainment Tonight did a segment on the film during filming which was the scene at Bethesada Gardens in Central Park in March 1996 which was one of the earliest scenes filmed.
One of the reporters in the film, Pete Hamill was in fact working for the New York Daily News at the time of the production with his picture plastered on MTA buses and Subway posters like George Clooney's character Jack Taylor in the film.
For the film score, James Newton Howard used George Gershwin as the basis of his score with a contemporary feel due to the hustle and bustle of New York City and also the hectic day that both George Clooney and Michelle Pfieffer's characters are going through.
The film is supposed to take place during early Spring. It is noticeable with many scenes that take place with rain in the background or given the appearance that has rained. These include when Jack, Maggie, Melanie and Sammy are late for the trip on the Circle Line, when Jack meets Manny on the roof of the building downtown, the trip through the flooded puddle at the Bethesda Fountain, after the soccer game in Central Park.
Jack Taylor wears the same exact clothes from start to finish in the film after he takes Maggie to school while Melanie has several clothing changes that include her pajamas that she opens and ends the film with and some due to accidents like Sammy squirting juice on her blouse, the chocolate pudding accident, and the orange woolen coat she wears during the press conference at City Hall.
The trivia items below may give away important plot points.
To show how hectic each of their days are, Jack and Melaine literally run all over New York City for the entire day. For example their day together starts in Midtown Manhattan, then they head to the Circle Line which is on the West Side of Manhattan from Times Square, then Melanie heads to work at Rockerfeller Center on 5th Avenue, while Jack heads towards Park Avenue where the New York Post offices are located (in the film, they are actually located near Times Square in actuality), Melanie heads downtown the replace the broken model piece, Jack and Melaine meet up at the 9th Street Drop Center which is in Greenwich Village, Jack then heads downtown to City Hall to confront Manny Feldstein, Melaine heads back to work at Rockerfeller Center, Jack then goes back to the Post where he gets info on Elaine Libermann and heads back to the 9th Street Drop off Center to Pick up Maggie and Sammy thanks to Melanie's frantic phone call, Jack, Maggie and Sammy head to the Museum of Natural History on the West Side around 81st street where Jack gets info on where Elaine Libermann is, Jack heads to Rockerfeller Center with the kids to meet Melanie, Jack heads to the beauty place on the East Side on Lexington Avenue where Elaine Libermann is and meets Melanie's mother Rita and catches up with Elaine in her limo and go for a ride and talk. Melaine takes the kids to Serendipity 3 on Lexington and 63rd, then they head downtown where Maggie wanders off again and Melanie goes frantic looking for her and remembers to head to City Hall to find Jack, Jack then heads downtown to the antique store where Maggie is and takes her and the kitten to the City Hall Press Conference, City Hall, then they all head back to Midtown for Melanie's presentation over drinks with her boss and the investors, then they run up the West Side to head to the Soccer game in Central Park, the game in Central Park, they each head home after, and finally, Jack and Maggie then head to Melanie's apartment to bring Sammy new goldfish to take back for school in the morning and both fall asleep together.
The reason Jack's apartment is a mess when we first see him early in the film is due to a serious plumbing situation that has not been resolved. Jack mentions this to Lew when he's explaining himself about Manny Feldstein's recanted testimonial about the Mayor taking money from the mob which is the films' other major subplot.
The film takes place in one day which starts at 6:30 AM and ends around 9:30 PM with George Clooney sound asleep with Michelle Pfeiffer passing out on him on her sofa after a few minutes of getting all made up for him. Since they met around 8:30 AM, they have been together on and off for the day for more than ten hours at least.
The film begins and ends in Melanie's apartment. We see Melanie trying to get to sleep with things preventing her from doing so including Sammy waking her up in the middle of the night. Melanie falls asleep on Jack after trying to make herself more attractive for him after a few minutes and after she finally comes out of the bathroom, she falls asleep on him too ending their long day together.
The films' second plot involving Jack's story about corruption involving the Mayor's office and the head of the Department of Sanitation Libermann revolves around a vital deposit slip that his wife, Elaine has in her possession and vindicates him as finally appears in the sea of reporters with the proof at the 5:00 press conference with the Mayor in which Melaine stalls so Jack and Elanie could get there just before the Mayor left.
Melanie and Jack have alot of things in common with each other that throughout the film tells you that they do end up together in the end. Both are divorcees, they totally love their kids, they are workaholics, they're always in a hurry to get things done, and they both charm people with their looks.