A film crew member tells Irish newspaper the Sunday World, "The set is abuzz with talk that they wed in a private civil ceremony during a shooting break.
"Colin's a changed man since he went into rehab last December. He no longer gets high and shoots from the hip; he's become quiet, reserved and utterly charming. The old Colin would have blabbed straight away if he'd got hitched.
"Who wears a wedding ring before they get married? Colin has it on almost every day.
"The one thing he does freely admit, though, is that he and Lake are very deeply in love. And he's made absolutely no secret of the fact he feels it's time to settle down, continue building his career and start to focus too on a family."
Farrell's representative refused to comment on his tell-tale ring, only saying, "I don't know, this is a private matter."
The actor has already made moves to settle down in Los Angeles--he recently bought a $4.3 million home in the Hollywood Hills.
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