Arch graduated from the Harrisburg Academy in 1972, marking the beginning of his academic journey. He then pursued a course of study in Theater and Film production at Emerson College in Boston, a decision that would ultimately lead him to establish a production company. During his time at Emerson, Arch formed a lasting friendship with renowned cinematographer Conrad Hall, who had a profound influence on his life and career.
After completing his studies, Arch relocated to Los Angeles in his early twenties, where he began working as a concert lighting designer while simultaneously teaching himself the art of screenwriting. This period of self-discovery and professional growth laid the foundation for his future success.
In 1982, Arch tied the knot and moved to Virginia, where he took on a dual role as a high school English teacher and Tae Kwon Do instructor. It was during this time that he conceived the idea for "Sleepless in Seattle," a notion that had been gestating for nearly a decade, having been preceded by four unsold screenplays and a failed off-Broadway production.
The sale of the "Sleepless" script marked a turning point in Arch's career, as he went on to write prolifically for various studios and producers, including Brian Grazer, Mark Johnson, Lauren Shuler-Donner, Penny Marshall, Ron Howard, and Barry Levinson. To date, four additional films have been adapted from his screenplays: Disney's "Iron Will," a production rewrite; "Sealed With a Kiss," an original romantic comedy for CBS; "Saving Milly," an adaptation of Mort Kondracke's memoir, which earned a Humanitas Nomination for Arch's screenplay; and the indie comedy "Dave Barry's Complete Guide to Guys," which Arch also directed.
Arch's work extends beyond the realm of film, as he is also the co-producer and book writer for "Sleepless in Seattle - the Musical." He has remarried and currently resides in Malibu, where he continues to draw inspiration from his experiences and channel them into his creative endeavors.