With Rudd's character needing to psych himself up before the big act, he stands in front of a mirror and comes out with some of the most hilarious lines of all time.
This scene involving Kristen Wiig and John Hamm is simply hilarious, much like the entire movie for that matter, with constant comedy taking place throughout.
When his heart stops beating, Claire does the only thing a time-traveling surgeon from the future can do, she takes off her nightgown, jumps on top of him and brings him back to life with a hand job.