How does Mischa Barton celebrate making it to Cannes Film Festival?
Well, we're not sure what Mischa's lighting up, but she's no doubt enjoying her time off the French coast ... on designer Roberto Cavalli's yacht. She sure does love those homemade ciggies ...
recent clothing challenge?
Mischa Barton -- Chronic Smoker
5/22/2007 3:08 PM PDT BY TMZ STAFF
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