Here is some 1987 dated Kodak Vericolor III 160 ASA I was given -- it HAD been refrigerated by a Pro photographer who was Emigrating. I rated it at 32 ASA with my PENTAX 6x7 MK II and processed for 30 seconds longer in C41 chemicals -- they came out well .

Weald 7 by pentaxpete, on Flickr

Weald 1 by pentaxpete, on Flickr
Here is some outdated Fuji Provia 100 I keep in the 'fridge

Barbie by pentaxpete, on Flickr
Here is some 2005 dated Fuji Provia 100 CROSS-PROCESSED in C41

XPro Telephone by pentaxpete, on Flickr