I just watched Red today at a friends house and it got me thinking:
When was the last time Bruce Willis really, honestly tried to act? And when was the last time he was paired with a director who was able to get a good performance out of him?
Seems to me he's been on autopilot lately, and just prefers to be paired with Directors who won't push him at all. Kevin Smith's story about working with Willis on Cop Out proves this. Smith tried and butted heads with him constantly on set.