As I said, Genie, I've never seen all of the movie "Airplane", only bits and pieces of it, therefore I'm not really able to give you my opinion of that one because it isn't formed yet.

I think part of the key to my low interest in the Leslie Nielsen movies was my own personal reaction to Leslie Nielsen as an actor. The man just didn't interest me for some reason. His acting had the same effect on me as that of Lorne Greene or Raymond Burr....no effect at all. Interest level zip! Nada. ;-) Peter Sellers or Chaplin, on the other hand....I really liked those guys and could relate to them. Likewise Johh Cleese, Jamie Lee Curtiss, Arnold Schwarzenneger, Kevin Kline, Clint Eastwood, Danny De Vito, Bette Midler, even the whiny Woody Allen...they are all people whose acting personas I have found interesting in one way or another.

Now Groucho Marx...I actively detest the man! ;-) (going merely by how he came across) I can't even look at Groucho Marx without feeling strongly how much I can't stand him and his whole trip. Needless to say, that tends to ruin my enjoyment of Marx Brothers films.   

But Charlie Chaplin...my heart warms to Chaplin. I love the social idealism and very human feeling he put in his movies.

How much one likes an actor can have a great deal to do with how one relates to a movie the actor is in.

Now in Leslie Nielsen's case I neither liked the man nor disliked him...I just wasn't interested in him at all, one way or another. Not much of a strong motivator for me to watch his movies, was it?