I originally rented "Grind" because I am a big fan of "Jackass" and four or the guys from that show are in this film. I will get to them in a moment.
First of all, I found the dialogue and the situations too predictable at times. Secondly, the "hot girls" all over the place became annoying very quickly. With that being said, I actually liked the movie. It's not at all something that I would normally like.
Now, I wasn't expecting to laugh much because the type of things I find funny aren't generally things other people find funny. However I did chuckle several times at Adam Brody, who, in my opinion, did the best job of the four main fellows. I'm so glad that there can be actors who are very cute AND dorky like him. I also though Vince Veleuf (sp?) did a great job with what he was given.
I was a bit surprised that they casted Bam off to be a jerk. I mean, he was playing himself, and he often beats the crap out of his dad and destroys things in his house. But I guess it's up to everyone to have their own opinion of him. (I, for one, think he's hilarious.) I was also pleased to see Preston Lacy and Wee-man in cameo roles. However, the most shocking portrayal by a "Jackass" member was that of Ehren McGhehey. I've known Ehren for almost four years to be an adorable young man, commonly going by the alias "Danger Ehren" and wearing a helmet with the Jackass logo on it, big goggles, and dusty coveralls with the word "SCARS" on the back. Seeing him as a ghetto g-thug white boy was incredibly strange. But he pulled it off so well. It was the first time I had to really look at him as "Ehren the actor" and to tell the truth, he did an outstanding job.
I would give this film a 7/10.
