Help Finding A Movie Starring Jim

[JAKE]

I've been searching high and low for this film. I saw it on TV whilst i was on holiday but i only got to watch 5 minutes of the movie before i went out, so i have no idea what it was calle Basically i remember 1 line, "Aaaargh my eyes I am bliinded!!"
Basically from what i saw Jim was hanging round with somebody and they went to some sort of arena. i'm pretty sure Jim was playing a guy with some sort of mental disorder as he was nice one minute and then decided to try and kill this guy. Whilst he was doing so the guy through a load of sand (or something) in his face, hence the line.

It looked like an incredibly funny film and i just wondered if any of you guys/gals knew what the name of the film was.

Thanks a lot!!!

[cotton]

sounds like The Cable Guy when him and Matthew Broderick(Steven) went to the medievel times and put on some armor and Jim(Chip) started to fight him and got a bit carried away

[Canadian Jayne]

cotton, why has he never played in a Knight movie, he would
make a fantastic knight other than the clip below.

[fluffy]

on a white charger............lol

fluffy

[Canadian Jayne]

i mean.