Not an incredibly crappy movie.... but the ending scene of Spider-Man 3. The part where Sandman tells Peter about his daughter is one of the most emotionally powerful scenes I've ever seen in a superhero movie. Also the ending to Terminator 3. Amazed that the crew had the guts to pull off such a remorseful ending.

Batman v Superman - The warehouse action piece and when Doomsday punches Wonder Woman and she smirks.
Reign of Fire - Bale jumping, axe in hand, to strike the dragon only to be eaten.
Star Wars Episode 1 - Darth Maul fight


Those come to mind right now.

The Grey really isn't what I would consider a bad movie (64 metascore) 2012 is slightly below average (49 metascore) for a movie to truely be bad it has to have a metascore well below 40.

Star Wars VII - Poe Dameron's killstreak
X-Men Apocalypse - Quicksilver saves the day
Star Trek Beyond - The destruction of the Enterprise
The Wizard - The Power Glove

If you go by the metascore the movie is beyond terrible (metascore 14) but really the whole movie is awesome and one of the best comedies in the last 20 years.  The critics just didn't get it.

I never thought this scene would be downright tasteful compared to the elephant scene in The Brothers Grimsby.