Anyone who names "Se7en", "Matrix" or "Titanic" as the worst movies they`ve ever seen, can`t really have seen a lot of movies. At least all three of these have over-average or even decent acting, lavish production and plots that are not TOTALLY stupid. Either that, or you have been consumed by the spirit of iMDB, where you give movies a 10 if you like them or a 1 if you don`t like them. In reality, VERY few movies deserve a 1 or a 10, so giving them out in measures seem a bit stupid to me (this is directed at Board, whom I happen to agree with for the most part, but not at all in this thread). Now, for my votes:
The Art of Dying (Spanish "horror". INCREDIBLY bad, INSANELY boring)
Phantom of de Louvre (French "horror". VERY bad, INCREDIBLY boring)
High Explosive (Canadian low-budget "action". Tragic waste of time)
Battlefield Earth (no introduction needed).
Three out of four of these were watched on Canal+...