Dude, $2 and an IMDB credit will get you a cup of coffee. For perspective,
my dog is on IMDB.
To answer your sort-of-question, yes, there are a number of fests listed on WAB that will get you an IMDB listing, just by submitting. You don't have to do anything to follow-through to make sure it happens. It'll happen.
However, it's a temporary listing. They give you a good deal of time, but eventually they're going to send you an email asking if your movie has gotten into any fests, if it's screened anywhere else otherwise, etc. Long story short, IMDB still has its qualifications for listing a movie. Submitting your movie to a qualifying fest will get you an IMDB page, but your movie needs to meet IMDB qualifications in order to keep that page.
I ain't gonna lie, an IMDB page is fun. It kinda makes it feel like you made a real movie, I get that.
I'm only trying to let you know that you shouldn't make any huge efforts just to get listed on there, cuz it really doesn't benefit you anything.