Henry Cavill Henry Cavill

Soon-to-be Superman star Henry Cavill is engaged to his equestrian girlfriend, the Belfast Telegraph reports.

Cavill, 27, proposed to Ellen Whitaker, who's training to make the 2012 British Olympic team, while they were on a trip to Hollywood.

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"I couldn't believe it when he asked me to marry him," she told the newspaper. "I thought we were there to celebrate his birthday. It was such a surprise and I am so happy."

Cavill most recently appeared in Showtime's The Tudors and will star in Superman: Man of Steel slated for release in December 2012.