Is Harrison Ford Too Old to Play Indy?

[roguem]

http://www.whedonesque.com/?comments=9838
And should Nathan Fillion replace him? This is the question asked in this week's Sci Fi Wire Poll. 

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Am i a freak for not wanting another Indiana Jones movie? The originals are classics, trying to breathe life into it again now... it just has to be doomed to fail, doesn't it? What do you guys think? Are you hoping for another one, or are you fine with the movies we already have.

As for the other thing... I like Nathan Fillion, but if Harrison Ford isn't going to play the part they should just call the whole thing off straight away, once you start changing the actors things are bound to get crappy.