HAS RUSTY CALLED OFF HIS WEDDING TO BRITNEY?

Russell Crowe refused all invites and requests to celebrate his 60th birthday on April 7, telling friends he had "no plans" to mark the milestone, citing work commitments.

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In fact, the Gladiator star, who is filming Nuremberg in Budapest, has become "extremely insular" since last summer, and worried friends fear the worst for his romance with fiance Britney Theriot.

"Russell's thrown himself into work and isn't interested in anything else," says an insider. "Not even Britney. It's safe to say there's zero talk of weddings and Britney's not pushing it either. She might feel like he's pulling away from the situation and it's only made more complicated by the fact his ex-wife - the official 'love of his life' - has gushed about how strong their friendship is."