Via the Calgary Herald:
In 2008, low-budget filmmaker Lloyd Kaufman received a lifetime achievement award at the prestigious Sitges Film Festival in Spain, which specializes in horror and fantasy films.
As he went up to accept the award, a tribute reel played in the background that was supposed to highlight his contributions to cinema as head of Troma Entertainment, from The Toxic Avenger to Poultrygeist: Night of the Living Chicken. Unfortunately, there was a bit of a mix-up. The films featured were all from critics’ darling Charlie Kaufman, the oddball auteur behind Eternal Sunshine of the Spotless Mind and Being John Malkovich.
“That was a great moment,” says Kaufman. (Source)
It'd be even funnier if this happened the other way around.
And just to confuse things more, Lloyd has a brother named Charles, who's also a film-maker.