Their's loads available. I've used one for years by a German guy I found on github which is regularly updated but can't find it now.
Here's another though https://github.com/aramkocharyan/IMDb-Scraper
The thing is these need to be regularly updated as they need changes when the imdb website alters it's layout which is why the one by the German developer was good as it was updated very quickly.
Later.....
oh I found it http://www.wjunction.com/821486-post8.htm
It depends more on the hosting than what script your using. If your on free hosting it doesn't matter if it's Blogger or Wordpress as the server is unlikely to be able to run the script. What type of hosting are you on? Free or do you pay for hosting? Do you understand or follow me? If not I can explain more.if i am on wordpress then i get free script=) or paid one