DiCaprio signs up for space film
Leonardo DiCaprio will provide a voiceover on space film Hubble 3-D.
The Warner Bros Imax project - which is led by producer/director Toni Myers - is set to hit US cinemas on March 19.
"I'm thrilled that Leonardo will be guiding our audiences on this incredible journey through the cosmos," Myers said.
"It's a tremendous honour to have him as part of the Hubble 3D team. His extraordinary gift of connecting with audiences is the perfect fit for the immersive experience of Hubble's story."
Imax CEO Richard L Gelfond added: "Leonardo's exceptional talent as both an actor and communicator will dovetail nicely with this breathtaking film, and we're looking forward to having him guide us to the edge of the universe and back."
The film, based on the Hubble Space Telescope, will journey through distant galaxies, and accompany space-walking astronauts as they attempt the most difficult and important tasks in Nasa's history.