Hollywood actor Dennis Quaid has dismissed rumors ex-wife Meg Ryan is filing for full custody of their teenage son Jack after tabloid reports surfaced questioning his sobriety.

The Vantage Point star split from Ryan in 2000 and their divorce was finalized in 2001. The couple, who share custody of 16-year-old Jack, has left Hollywood guessing over the details behind their split for the last eight years, but Ryan finally broke her silence last week, when she claimed Quaid had cheated on her.

The revelation prompted sources close to the former couple to leak further information about their divorce, with one insider claiming that their joint custody agreement included a stipulation about Quaid's sobriety, reports the New York Daily News.

The source says, "Meg came to believe he was drinking again and wanted full physical custody of Jack." However Quaid has refuted the reports, insisting nothing has changed in their care of their son since the settlement was made.

He says, "Meg and I have always had joint custody of Jack without any stipulations whatsoever." Quaid is now married to Kimberly Buffington, and the couple welcomed twins last year.

A representative for Ryan could not be reached for comment as WENN went to press.

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(This news article provided by World Entertainment News Network)