Simplify the following text for a Grade 8 native English-speaking person.
Original: On one occasion she refused to perform with Martin as he had a cold , and the producer Henry Weinstein recalled seeing her on several occasions being physically ill as she prepared to film her scenes , and attributed it to her dread of performing .
Simplified: On one occasion she refused to perform with Martin as he had a cold . Producer Henry Weinstein recalled seeing her on several occasions being physically ill as she prepared to film her scenes .