Poor Bill Murray, still having to talk about ‘Ghostbusters 3.’ The dude does a guest spot on David Letterman, and even brings his own hologram along, and still has to answer questions about a possible ‘Ghostbusters 3.’ At least he responded. What did he have to say?

Murray is in a great mood in the clip, even though it’s an awkward sprint through his past. When Letterman asks him about ‘Meatballs,’ Murray playfully responds, ‘What about it?’ But he likes Letterman (you can tell), so he endures. Even when he gets the inevitable ‘Ghostbusters 3’ inquiry, which Letterman all but admits is a ‘tired’ question … yet he asks it anyway.

Well, that’s all that they wanted to know at Cannes, too. You know, you just gotta have a really good script. It’s hard. Even the second 'Ghostbusters' wasn’t as much fun for me as the first one. It’s hard to make a sequel. It’s gotta be really funny, and that first one was just so darn funny.

When pressed by Letterman to see if someone at least is working on a script, Murray hedges his bets.

Well, I think … we’ll try again. I always drag my feet on it.

Watch for yourself. He’s not sarcastic, though he does seem tired by the prospect. At this point, we’re not sure if a third ‘Ghostbusters’ could live up to the pre-hype, but if Murray’s willing to give it another shot with Dan Aykroyd and Harold Ramis, we’ll be ready. Here’s the clip:

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