Burton, who is dating actress Helena Bonham Carter since 12 years, was seen in a compromising embrace with the blonde woman after leaving a movie theater here in late September, reports dailymail.co.uk.
According to a source, Burton and the mystery woman got intimate after a screening of "The Wicker Man".
"They stopped in an alley to kiss before making their way back to her car together," said the source.
Photographs of the incident have been obtained by The Daily Mail recently.
Burton, 55, and Carter, 47, have two children together.
--IANS (Posted on 05-10-2013)