Marlene Dietrich's 4 syllables (2 + 2) hit the Hollywood sweet spot.
Marlene's 2 beats vs. Dietrich's 2 create a natural cinematic snap.
Marlene Dietrich's softer consonants cost it screen presence.
Marlene Dietrich misses the alliteration hook that makes names stick.
Marlene (7 letters) and Dietrich (8) are balanced in length — clean on any poster or marquee.
Marlene Dietrich's sounds flow naturally in English — easy to say and remember.
Marlene Dietrich's open vowels roll off the tongue — warm and screen-ready.