Russell Crowe helped the cast of Les Miserables to bond by inviting his fellow stars back to his home for drinks and singing, according to his co-stars.

Anne Hathaway, who plays Fantine in the production, said: ''Russell was the glue. He was the first to say 'Why don't you come to my house? We'll have a couple of drinks and we'll sing.' ''

Hugh Jackman, who plays the part of Jean Valjean, explained that he also tried to maintain the fun atmosphere on set by breaking into song.

He said: ''I sang Hallelujah with Russell and Annie and I did a bit of an impromptu show, waiting for the rain to stop.''

The 44-year-old actor further told People magazine that filming the motion pictrue was a "harrowing" experience, adding: ''It was a harrowing emotional experience. But in the end, it was worth it ... I was eating anything I could. If ever there are any outtakes, there's a lot of me burping.''