Sidney Poitier's 4 syllables (2 + 2) hit the Hollywood sweet spot.
Sidney's 2 beats vs. Poitier's 2 create a natural cinematic snap.
Sidney Poitier blends hard and soft consonants — decent presence, some softness.
Sidney Poitier misses the alliteration hook that makes names stick.
Sidney (6 letters) and Poitier (7) are balanced in length — clean on any poster or marquee.
Sidney Poitier has mostly familiar phonemes with a few tricky patterns.
Sidney Poitier has decent vowel richness, but stronger A and O sounds would lift it.