300 and Anchorman. I really like Greek mythology/history, 300 was macho trash. Anchorman, pretty much everyone I knew quoted it all the time for about a year and insisted that I "needed to see it", when I did, all the "funny" bits were dead to me.
Gravity, nice effects and I think they got the tension aspect right but that movie is impossible to watch as a physicist, there was just too much that was wrong with it.