Wait, but proper nouns are only the full names like Marc Dorcel. So "Marc Dorcel" should not be split into John Smith. Because "Marc Dorcel" is a proper noun. The user said "No changes to proper nouns." So proper nouns are kept as they are. Therefore, "Marc Dorcel" should remain unchanged, and only the other words are replaced.
First line: "Marc Dorcel is a veteran in the adult film industry, with a career spanning several decades."
But perhaps the user wants substitution for each word individually, not the entire phrase. So "can also be seen" becomes could additionally are viewed? Wait, but the user wants every word with three synonyms in spintax. So each word is replaced individually with three synonyms. So the entire sentence would be transformed by applying spintax to each word (except proper nouns). Sasha And Angelika Escorts Deluxe -Marc Dorcel ...
But for the task, I need to follow the instruction as given: replace each word with three options, proper nouns only as they are. So even if the alternatives don't make sense, proceed as per the instruction.
Processing:
Similarly, "career" → hustle maybe. But "hustle" might not fit. Maybe tenure
"The film’s influence can also be seen in its contribution to the “Escorts Deluxe” series, which has become a benchmark for quality and production values in the industry." Wait, but proper nouns are only the full
"One such name is Marc Dorcel, a renowned French adult film producer and director." "Such" as "one of these|one of those|an example of|one of them"—but the user wants three synonyms, so maybe "one such|an example|a case of". "Renowned" could be "famous|well-known|celebrated". "French" can't be replaced as it's a nationality. "Producer" as "creator|maker|producer". "Director" as "filmmaker|director|producer".