http://en.wikipedia.org/wiki/Pacific_Rim_(film)
Ancient monsters vs futuristic giant robots and other machines.
http://www.vulture.com/2013/07/pacific-rim-primer-godzilla-mecha-kaiju.html,
https://www.youtube.com/watch?v=_ssjFfDi6mc
Gappa 1967
http://www.youtube.com/watch?v=6gRiCtrGk80,
http://godzilla.wikia.com/wiki/Gappa_the_Triphibian_Monster,
https://www.youtube.com/watch?v=RV6EF7mXmkY
http://www.thestar.com/entertainment/movies/2013/07/05/pacific_rims_guillermo_del_toro_is_a_monsterloving_pacifist.html
http://en.wikipedia.org/wiki/Reptilicus,
http://www.youtube.com/watch?v=Ty98XOw92l8
http://en.wikipedia.org/wiki/Cloverfield,
http://cloverfield.wikia.com/wiki/Cloverfield_Monster,
http://collider.com/drew-goddard-cloverfield-sequel-interview
Apparently no laxatives were used during the production of these movies.
However, some scenes may cause a tremendous cathartic release.