One of my favourite ‘rare’ gems is this clip from Hitchcock’s AFI Lifetime Achievement Award (1979). Tippi Hedren introduces Sean (from 3.20) and as he receives a lengthy applause, the camera cuts to Hitchcock looking puzzled and leaning into a tangoed Cary Grant asking “Who’s he?!”.
They probably would have edited it out if it wasn’t for Sean picking up on it (and taking it very well).
AFI honored Sean with his own Lifetime Achievement Award in 2006. The whole ceremony is great but his Granddad dancing at the end makes me smile every time.