The argument escalated from there. Alonso relates: “I said, ‘You are a communist, Sean Penn.’ He said, ‘You are a pig!’ So I said, ‘And you are a communist [bleep]hole! Is it great to live the way you do as a communist?’

“I went back to my mother, and he started yelling at us,” Alonso told us. “I yelled back, ‘Communist [bleep]hole!’ Nearly 60 people were watching, shocked. My mother wanted to clap, but she couldn’t because she was in a wheelchair and she had a small dog in her lap.”

Penn, traveling from Haiti, told us: “I only knew that a hostile woman was nonsensically berating me. I didn’t realize it was that actress. I think I worked with her once. But she looks really different. She was uninformed and impolite to all the other passengers.” The two starred in the 1988 film “Colors,” as lovers on different sides of the gang war in Los Angeles.