Role Credit on IMDb v IMDbPro

I had a small role in a soon-to-be-released film in which I'm not yet credited because, as per the director, he couldn't find my IMDb page to link to. I'm not a professional actor, and so don't have an industry profile, on IMDb or anywhere else. But I'd like to have the credit on the off-chance I may get future work from it. Do I need a Pro page to proceed, or will a standard page suffice? Hoping for a standard/free page v. paying for a Pro listing, because, again, I'm not really active in the industry; just happened to luck into the role. Should something more come of it, then I'd upgrade with an eye towards increasing my opportunities, validating the cost of Pro page. Thoughts?