Conversation so far:
How did Hedy Lamarr start her acting career?
Still using her maiden name of Hedy Kiesler, she took acting classes in Vienna. One day she was hired at the age of 16 as a script girl.
What film was Hedy Lamarr's start?
Hedy Lamarr gained a role as an extra in Money on the Street (1930), and then a small speaking part in Storm in a Water Glass (1931).
Was Hedy Lamarr the leading role in her first film, Money on the Street?
Hedy Lamarr was an extra.
Did Hedy Lamarr perform well on Money on the Street?
Was Hedy Lamarr's Money on the Street well received?

Question: Was any film her big break?
Self-contained rewrite: Was any Hedy Lamarr film her big break?