I have been trying to find any video at all of Robert Gillruth and have been surprised at the lack of anything decent about him...
I haven't heard of any such video, but that doesn't mean none exists. Others here might know of something.
He does appear in nearly all of the official NASA movies of the moonlanding missions, but there are mostly only one- or two-second shots that include him when cigars are being handed around at Mission Control at the end of the missions. I could tell you where to see him in the same versions of the movies that I have, but there are some very poor-quality, edited versions around on DVD. Quick-buck-makers have degraded the non-copyrighted material. It would be good if Spacecraft Films did high-quality restorations of the full films, similar to the fantastic quality of the Mercury missions' DVD set where the movies look like they were shot yesterday.
The NASA movies, of about 28 minutes each, are:
Eagle Has Landed: The Flight of Apollo 11
Apollo 12: Pinpoint for Science
Apollo 13: 'Houston... We’ve Got a Problem'
Apollo 14: Mission to Fra Mauro
Apollo 15: In the Mountains of the Moon
Apollo 16: Nothing So Hidden
Apollo 17: On the Shoulders of Giants
Gilruth's Wikipedia biography doesn't say much, but it does have links to a little external material, including his Oral History interview.
http://en.wikipedia.org/wiki/Robert_R._GilruthGoogling "robert r" gilruth turns up 68,400 results. Note one "l" in his name, not two. That might have caused you to get fewer hits.
There's a Mount Gilruth in Antarctica which is named after him. (And one of our members here might already know all about Mount Faget.)