ET has the details...

Guy Richie hit the town with his boys as a world famous trio took London!

The director and his pals Robert Downey Jr. and Jude Law made a surprise visit to the White Cube Gallery in London, People reports. The three fellows are working on the new 'Sherlock Holmes' movie.

Despite his very public divorce battle with Madonna, "Guy was in great form, hanging out with friends having a good time," a source told the mag. "He seemed quite merry and had his arms around lots of people and smiling."

"Guy seemed quite happy being out and about with his friends," the source added. "I think the distraction is just what he needed, especially the way he was smiling."