The pair were spotted together at Chrome Hearts in New York City on Friday, February 8, where the actor was celebrating his L'Officiel USA lauch party with the actress.
The actor, 31, was with Chambers for eight years and have two children together. James, on the other hand, was dating 'The Crown' actor, Matt Smith, for four years and split in October while the actress was filming the upcoming film 'Mamma Mia: Here We Go Again'.
Another source later exclusively told Us Weekly that James “has moved on [from Smith] … as in she is seeing someone else.”
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