Talk show queen Oprah Winfrey admits she's still perplexed by Tom Cruise's infamous sofa outburst when he appeared on her show to discuss fiancee Katie Holmes.

The presenter has branded the extrovert incident as totally out of character, and suspects the Hollywood actor may regret his enthusiasm.

She recalls, "I was trying to think what to do; I didn't know how to react. I couldn't figure it out.

"I was thinking, 'Is this real?' And then I realised it was.

"I'd interviewed him before and he'd been so intensely private, so this was beyond anything I'd expected.

"I wonder if he regrets it?"

Cruise's over-zealous behaviour has inspired a new term, "to jump the couch", a synonym for over excitement.