Great monster/horror movie with bits of humor thrown in (spoilers)

I enjoy almost all monster/horror movies, but I love how they threw in bits of comedy too.

Top 3 comedic spots IMO:

3. *Lisa accidentally shoots staple gun towards Paddy*
Brian: "You missed!"

2. O'Shea: "Let's stop now! Lisa, you can stop anywhere! Okay you can stop now! Stop!!"
*Lisa crashes into sand dune*
Lisa: "We're here!" (wildly waving arms)

1. *Lisa, O'Shea, and Smith all pound on the female grabber until they think it's dead*
Smith: "There goes the scientific discovery of our time. Imagine all that we could have learned...it's still moving..."
*Lisa, O'Shea, and Smith continue to pound on the female grabber*