Navigate to the IMDb home page and click on the drop down menu next to "Search" in the upper-left of the black header and click "Advanced Search."
Click on "Advanced Title Search" under the section labeled "Advanced Title Search."
Browse the options available to you to determine which of the search criteria you can fill in.
Fill out the filter criteria available to you as far as title type, approximate release date, genre, company, country of production, keywords you might know, the film's language, plot related keywords, and any cast your recall seeing.
Check the display options under the final section labeled "Display Options" to configure the detail and the number of results per page.
Browse the results presented to you and hopefully you will spot the title you are looking for.