Olivia de Havilland's 7 syllables sit just outside the ideal 3–5 range.
Olivia's 3 beats vs. de Havilland's 4 create a natural cinematic snap.
Olivia de Havilland's softer consonants cost it screen presence.
Olivia de Havilland misses the alliteration hook that makes names stick.
A 5-letter gap between Olivia and de Havilland throws off the poster balance.
Olivia de Havilland has mostly familiar phonemes with a few tricky patterns.
Olivia de Havilland has decent vowel richness, but stronger A and O sounds would lift it.