- Tom Cruise's ongoing pattern of unbelievable commitment to the projects, from risking his life to do various stunts to meeting fans at four different premieres for Mission Impossible III within four hours, having personally piloted his helicopter between them, to conducting the freaking orchestra for the Mission Impossible theme.
- The CIA heist, showing that an intense scene in a summer blockbuster can be done without explosions and body count, but with an emphasis on silence.
- Ethan's escape from Kittridge, as soon as he figures out the mission was a mole hunt with him suspect number one, he just keeps him talking until he blows up the fishtank as a distraction. Causing him to outrun a wall of water.
- The climax at the end definitely deserves a mention, but it wouldn't be complete without the music. Until this point, the music has been this cacophony of musical instruments. But when Kreiger nearly loses control of the helicopter before you think he slices Ethan's head off, the music does the M:I equivalent of a "CHARGE!!!" and then blows out the M:I Theme crystal clear in a different key in a musical equivalent of "And the fight is on!". It's so awesome it makes this troper smile and get goosebumps. The sequence is so Rule of Cool that even Roger Ebert admits in his review that even though there's no plausible way a chopper could fit inside the Chunnel and have room to maneuver, it looks so damn awesome that you simply let it go.
- Let's not forget the scene immediately preceding the fight atop the train. Ethan ruins Phelps' entire plan just with a pair of glasses.
"Good morning, Mr. Phelps."
- On the meta level, Barbara Bain played Cinnamon Carter for three seasons. She won three Emmys for that role.