It is possible that:
* The name is misspelled: Check for variations in spelling or potential middle names.
* The person uses a different name professionally: Search for credits under different aliases, stage names, or variations of their name.
* They may be a less known or local actor: They may have participated in smaller projects that haven't been widely documented.
To help find more information, could you provide any additional details about Phillip John Hastings? For example:
* Approximate age or birth year: This could help narrow down potential matches.
* Any other known details about their career or involvement in the industry: Are they a writer, director, or other crew member?
* Any specific genres or types of projects: Are they associated with a particular movie or television niche?
With more information, we might be able to track down his filmography.