What happened to the second half?!!

Rating: 5/10 (17 June 2013)

I gave this five stars only because in the first half of the movie, the dialog and interaction between the stars was genuinely funny. I'm sure the writers had a blast making fun of all the movies the main actors had collectively made, but about the halfway point, the movie went into a death dive.
The writing suddenly shifted to endless penis, don't come in my house and drinking urine jokes that WERE raunchy and WEREN'T funny. Hysteria and huge, head-splitting special effects took over. The story became a soup pot into which the writers threw "every crappy idea that popped into their drug addled heads".
What a shame. At the beginning of the movie, I thought we might be treated to a version of The Hollywood Hangover. Alas, no such luck.