Shirtless Idris Elba shows off impressive rippling muscles in workout photo, Talks about next movie.

Since his breakout role as drug-dealing businessman Stringer Bell in The Wire, Idris Elba has taken on a slew of action roles from the hotheaded TV detective John Luther to escaped prisoner Colin Evans in movie No Good Deed.

And Idris Elba was showing off his rather impressive physique on Wednesday while training for another film role.

Looking a little sweaty and wearing just a pair of black shorts, workout pants and a gold necklace, the 42-year-old British star posted an Instagram video of his workout regime.

Along with the caption; 'Training for my next Film. Bastille Day. Grinding,' the star proceeded to perform some push ups using a weight.

In the process, he showed off his rippling biceps and shoulder muscles while a voice in the background counted to ten.

According to Variety, Bastille Day 'revolves around a rogue CIA U.S. operative (Elba) who is tasked with interrogating and eventually making a young American boy and con artist “disappear” in order to avoid embarrassment to the U.S. government after the boy is linked as the prime suspect to an attack on the Paris metro.

'After several more attacks, the operative realises the boy is innocent and may be the only link to the person actually orchestrating the attacks.'

The film is also set to co-star ex-Game Of Thrones actor Richard Madden and will be directed by James Watkins.

Despite his rising fame, the actor said he was uninterested in making a permanent move across the pond to Tinseltown. 

'I don't want to get into all of that,' the London-born star told UK newspaper The Mirror back in August. 'I don't want my family growing up here. That isn't me, it just isn't.

'I rented a place on my own in North Hollywood, but the time I spent here was on my own. I'm not into the whole fame thing.

'I don't have celebrity friends. I have the same ones I had from when I was a kid. For me it's about my family, it's about my kids, what is best for them.'

The Luther star has an 11-year-old daughter Isan with his ex-wife and a four-month-old son Winston with his girlfriend Naiyana Garth.