The best Jim Carey by far is Animal Detective...the one where he goes to that Indian tribe. So many classic lines.

"Allow me to show affection" - spags on all
*Indicates to his leg with spear* "EHHHHHHHH.........EHHHHHHHH"

His 2nd best is Liar liar for sure.

"I CANT LIE!"
"The colour of the pen is blue..."

As for the mask, it was ok. Sequel was indeed crap, almost as bad as spider man 2.