2. Bill Pullman/Bill Paxton

It all started in the '80s when they both played space cowboys - Pullman as Lone Starr in Spaceballs and Paxton as Private Hudson in Aliens. It continued in the early '90s when they both played regular cowboys. Can you figure out which one was Wyatt Earp's brother in Tombstone and which one co-stared in Wyatt Earp?