that "introducing" credit for many roles is to highlight a relatively new star and is very frequently not the first film role.I always thought that "Zulu" was his first film. IIRC, the opening credits even have an "and introducing ..." for him.
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But ... I recently (like, this last weekend) found out that he was in the 1956 movie "A Hill in Korea". He had said that he believed he was cast due to his experience in the war. Interesting fact ... one of the "big stars" in that film was ... Stanley Baker!
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