Not Starring... Audrey Hepburn 

oh! Cool :)
I've read about most of them, but I've never seen a list :D

oh! The Birds! I didn't know about that one :O
Audrey & Hitchcock would be amazing! Also Audrey & Chaplin!
And how ironic is that Julie Andrews ended up with three roles Audrey was considered to?
And Leslie Caron got three roles rejected by Audrey
And Lavender Hill Mob? Thank God she didn't accept a bigger role, boring movie
And Out of Africa? :O
I would have loved to see Audrey and Grace working together!

"Audrey & Hitchcock would be amazing! Also Audrey & Chaplin!"

Both would have been awesome!

"And how ironic is that Julie Andrews ended up with three roles Audrey was considered to?"

Yes, so ironic! I find it kind of odd that Audrey was offered the role of Maria von Trapp, considering all the scandal surrouding her casting in My Fair Lady.

And Audrey and Grace would have been amazing together!

I find it kind of odd that Audrey was offered the role of Maria von Trapp, considering all the scandal surrouding her casting in My Fair Lady.
I know! Same here...