Tom Hiddleston found portraying country singer Hank Williams in 'I Saw the Light' a ''joy''.

The 34-year-old star has never sung in a movie before but revealed he thoroughly enjoyed the experience of playing the music legend.

He said: ''I certainly connected to his joy of performing. There's no question that he felt, he took huge pleasure in the connection between himself and his audience.''

The 'Avengers' star - who appears alongside Elizabeth Olsen in the movie - knew how to play the guitar and enjoys singing off-screen, but he still had to challenge himself to sound and act exactly like Williams.

He told ET Canada: ''It was certainly a journey, like it was a journey to get there. Because I had sang before, I had played the guitar as a student you know, just like everyone else. You know, pick it up and noodle around and play whatever takes your fancy.

''But you know, I knew I had to play and sing like him. But you know it was joy. You couldn't help but feel joy when singing some of the songs.''

Meanwhile, Tom revealed the movie was among the quickest he's ever made, saying it took less than two months to complete the filming process.

He explained: ''We shot it very fast, we shot the film in 38 days, it's long yeah and it was longer. I was in everyday and in every scene and so I just, I didn't really have time to be myself.''