Halfway through the film, George Segal's character enters an actual construction site in New York City. The complex being constructed was the World Trade Center.
Working title was "Brooks Wilson, Ltd."
Character actor M. Emmet Walsh can be seen as a waiter in the background at 00:29:42 in the movie. But doesn't get a screen credit. Probably his first role.
One of the film's biggest champions was Pauline Kael of The New Yorker who wrote, "Loving is an unusual movie --- compassionate but unsentimental...Kershner is fortunate in having as his middle-class anti-hero George Segal, an actor with a core of humor and a loose, informal sense of irony, and one who radiates human decency and likable human weakness...one can't quite call Loving a tragicomedy, any more than one could quite call La aventura (1960) a tragedy. Segal's hero never rises high enough for a classic fall, but he's aware of his stumbling...Eva Marie Saint gives a stunning performance in what might have been a clichéd role...Miss Saint lets us see that the wife doesn't have many illusions about her husband or herself. She knows what will happen to her if he leaves; there's not much she can do except try to hang on, and it's a humiliating position...Loving is Kershner's best-sustained film. From start to finish, it's a demonstration of his sensibility and his superb craftsmanship. It's a relief to see such a harmonious, beautifully rhythmed piece of movie-making, and a special pleasure to see an American movie that's so quietly detailed."