Keira Knightley's 4 syllables (2 + 2) hit the Hollywood sweet spot.
Keira's 2 beats vs. Knightley's 2 create a natural cinematic snap.
Keira Knightley's softer consonants cost it screen presence.
Matching "K"s make Keira Knightley an instant sonic hook.
Keira (5 letters) and Knightley (9) have a slight length mismatch, but it reads fine on screen.
Keira Knightley's uncommon phonemes make it harder for audiences to latch on.
Keira Knightley's open vowels roll off the tongue — warm and screen-ready.