Showbiz
Rex Features
The actress, who was previously engaged to Heath Ledger, was spotted embracing Jonze at his Manhattan apartment.
A source told Star: "Michelle kissed Spike with a closed mouth on the corner of his lips. There was definitely a bit of caressing going on.
"She was clutching his arm. The body language was very romantic."
Williams first met Jonze when she auditioned for a role in his upcoming movie Where The Wild Things Are.
More: Michelle Williams, Showbiz
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