United Kingdom, April 17 -- Val Kilmer drew the line at a particularly graphic gag while filming the 2010 comedy 'MacGruber'.

The 'Top Gun' actor died earlier this month at the age of 65 after a long battle with throat cancer, and his refusal to agree to the joke has now emerged in a chat with the film's director Jorma Taccone.

Jorma, 48, told 'The Lonely Island and Seth Meyers Podcast': "He did do the movie -there was one joke, though, that he refused to do, which was that we did want to cut his penis off and shove it in his mouth. "That was the one joke that he did not want to do."

Even though Val, who starred as villain Dieter Von Cunth in the 'Saturday Night Live'-inspired spoof, declined to perform the scene, a version of the joke...