London, Aug 5 (IANS) Hollywood actress Eva Mendes ‘almost killed’ her co-star Will Ferrell on the set of their new movie ‘The Other Guys’ when she mistakenly picked up a real knife instead of a prop to be used in a fight sequence.

The two actors star in the upcoming comedy and in one scene Mendes had to attack Ferrell with a knife during a heated argument.

The actress admits they improvised much of the scene and when she picked up a carving knife, she didn’t realise the object was real, reports contactmusic.com.

‘Once we got the scene down, we were told to improve. We got into a little tug of war, and I picked up what was supposed to be a prop knife,’ the actress said.

‘It was actually a carving knife from our meal. I lunged at him, and I was really proud of myself (before I realised my mistake),’ she said.

‘When we cut, Will said, ‘Wow, usually we have to co-ordinate that with the stunt department’. It could have gotten ugly in a second. I almost killed Will Ferrell!,’ she added.