I'm using efke film that expired in 2006, so ha!
still perfectly fine. This box I'm shooting up now has been through x-ray machines(of all kinds) in Mexico, Peru, and Costa Rica(missions trips this past year), also the US.
still perfect. you shouldn't worry about any of it.
I got Astia and Provia from 1999(frozen, then refrigerated since 2005), still perfect.