Indiana Jones and the Temple of Dumb

My cousin is as dumb as he can be.
His IQ score is only twenty-three.
He and I both love those Indiana Jones movies.
We think they are neat and groovy.
But when we watched Raiders of the lost Ark, we got in a fight.
It's a shame that this poor boy isn't very bright.
When I told him that Raiders of the lost Ark was made in 1981, he sad I was lying.
I couldn't convince him it was the truth even though I kept trying.
I asked him why did he think I wasn't right.
He said it couldn't be true because from 1980 to 1983 Harrison Ford was frozen in carbonite.

(This is a fictional poem.)