Dave - Millard Lampell was mentioned when the documentary talked about Lee Hays.   As for Mike, I'm not sure why he wasn't included - but remember this is a documentary and the director decides what footage is best to tell the story. It just might be that Mike did not have anything to say that the director felt warranted.   I do not think there is any friction, recently XM radio ran a special that featured Pete, Mike & Peggy together in the studio.