Bill & Ted's Excellent Adventure
If there was an 11 it would be "Most Excelent!"
This movie is hilarious, a little cheesy sometimes but what do you expect, it's was from the 80's.
So I don't wanna ruin the plot but pretty much two Teenagers get a Time Machine and go on a series of adventures throughout different time periods so they can meet historical figures.
It's about an hour and a half or so, has very little language on only like 2 innuendos. I believe it's PG but could probably pass for G, even though there is mild Violence but is very cartoonish.
Probably the only better movie I've ever seen on the psp than this was casino royal, which is also very awesome.