I've not really seen all that many movies but some of the ones I have particular contempt for are:
Disclaimer: This is just off the top of my head, I may have completely miscomprehended everything and actually I'm slandering the Citizen Kane's of our generation
Bridge to Terabithia
The Girl dies and then the boy takes his sister to a land of CGI monsters during the last 2 minutes of the movie
My Sister's Keeper
I just didn't find this film very interesting and yes, I know it's sensitive subject matter but if the film is dull then I won't watch it. I feel like people were scared to criticise it because it was a "touching movie about Cancer"
Oh... and The Great Gatsby movie from the 70's but that is so laughably bad, a bit like the book imho, that I can't really complain (especially the scene where Myrtle is tapping on a window so hard she punches right through it, one abrupt cut later her uncut hand is suddenly drenched in blood)