Ruffalo: Columbo film up in the air
Mark Ruffalo has revealed that the Columbo film is still in development.
The Avengers star, who previously said he was keen to play the TV detective on the big screen, admitted that the issue appears to be with Universal, who own the rights to the series.
"I don't know (when we'll start shooting). They're sort of asking what is happening with the rights," he said. "It (talks) went from, 'We don't know' and not very interested to a much more pro-active conversation."
Peter Falk, who died in 2011 at the age of 83, won four Emmys for his starring role as the detective in Columbo, which ran on TV from 1971 until 2003.
Mark was at San Diego's Comic-Con to discuss his return to the Avengers world, where he is reprising his role as Bruce Banner/Hulk in the upcoming sequel, Age Of Ultron.
"The ambition of it is pretty spectacular. As big as Avengers One was, this is reaching for something even grander that is much more epic in its scope," the 46-year-old teased.
"The Avengers are in the centre of a crisis - they've met their match. Ultron is basically the culmination of all of them and all of their powers. When I'm reading it (the script), I'm often thinking of Shakespeare because he has the humour, the big grand ideas about mankind and the sword fights and the action. It's deceivingly very complex."
James Spader plays Ultron in the film, alongside returning cast members Robert Downey Jr, Chris Hemsworth, Chris Evans, Scarlett Johansson, Jeremy Renner and Samuel L Jackson.
Avengers: Age Of Ultron, directed by Joss Whedon, will open in UK cinemas in April 2015.